Link Data and Turn Prohibitor File

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This file contains data identifying information about the connector roads between each of two node points on Baltimore metropolitan area maps. The data includes the jurisdiction, distance, speed in each direction at morning and evening peak times and average speed for each di...

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RECORDS AND ARCHITES ADMINISTRATION NATIONAL
National Archives and Records Administration
8601 Adelphi Road
1985
College Park, Maryland 20740-6001
Date:
November 21, 2005
To:
File
From:
NWME (Hull)
Subject:
NN3-MDT-74-010
While reviewing the files of the Baltimore Metropolitan Area Transportation Study for input
into the Archival Research Catalog, I determined that there are three, not five, data files in this
study. This is not clear from the documentation. What apparently occurred is that there were
three original tapes sent to NARA by the agency. Some notes suggest that the tapes did not
include end of file markers for the files. Therefore, when the files were originally
preservation copied three files resulted. They are:
Dwelling Unit and Home Interview Trip Summary Survey File (XMIS=003571)
External and Truck Trip Survey File (XMIS=003572)
Link Data and Turn Prohibitor File (XMIS=003573)
Since the first digit in each record identifies records from each of the five surveys, researchers
will be able to identify data from each of the individual surveys.
THEODORE J. HULL
Archivist
Electronic & Special Media Records Services Division
NARA's web site is http://www.urchives.gov
NARA Reference Copy
General
National Archives
COX
Services
and
Administration
Records Service Washington, DC 20408
#374-30
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY, 1962
DOCUMENTATION
RIT ALPHANUMERIC RESOLUTION TEST OBJECT, RT-1-71
.
NATIONAL THE ARCHIVES SCRIPTA MANET LITTERA UNITED
OF STATES THE
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MEMORIAL DRIVE, ROCHESTER, NEW YORK 14623
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9255
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7E28
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1934
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10E85
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8532
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PRODUCED BY GRAPHIC ARTS RESEARCH CENTER
ROCHESTER INSTITUTE OF TECHNOLOGY, ONE LOMB
Record Group 200
National Arcives
Gift Collection
NARA Reference Copy
UNITED STATES OF AMERICA
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GENERAL SERVICES ADMINISTRATION
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National Archives and Records Service
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Washington, DC 20408
GENERAL RERVICES
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TABLE OF CONTENTS
Page
Deleted
3
Introduction to Documentation
8
GSA Form 7091
13, 13A
Traffic Zoning Procedures
14
Home Interview Procedures
52
External (Roadside) Interview Procedures
80
Truck Study
100
Coding Tables
121
External Traffic Zones
163
Dwelling Unit Interview Form
164
Truck Interview Form
166
External Interview F orm
167
Record Format for Survey Cards
168-
Verification Notes
170
Sample Printouts
Dwelling Unit Survey
181
Home Interview Survey
183
External urvey
185
Truck Survey
187
Link Data Survey
189
Related Publications
191
REVOLUTION WENTENNING
1776-1976
Keep Freedom in Your Future With U.S. Savings Bonds
NARA Reference Copy
000002
UNITED STATES OF AMERICA
GENERAL SERVICES ADMINISTRATION
#
National Archives and Records Service
COLLEAL surned
Washington, DC 20408
Introduction to Documentation
The importance of an extensive and efficient system of transportation
for purposes of national defense and interstate commerce has long been
recognized by the Federal Government. It is only recently, however,
that Washington has concerned itself with the transportation problems
of the large urban areas of the nation. That concern is well placed.
At present over 70% of the American population and most of the nation's
industrial capacity are concentrated in urban areas. And the trend
toward urbanization is on the increase. It is to the urban community
that an overwhelming percentage of Americans looks for employment,
housing, shopping, and entertainment. An amendment to the 1962 Federal-
Aid Highway Act recognizes this fact and instructs the Bureau of Public
Roads (now the Federal Highway Administration) to assist the various states
"in development of long-range highway plans and programs which are formu-
lated with due consideration to their probable effect on the future
development of urban areas.'
One of the first major computerized urban transportation planning studies
was the Baltimore Metropolitan Area Transportation Study of 1962. The
study was a joint effort undertaken by the U.S. Bureau of Public Roads,
the Maryland State Roads Commission (now the Maryland Department of
Transportation), the City of Baltimore, and Baltimore, Anne Arundel, and
Howard Counties. The consulting firm of Wilber Smith and Associates was
contracted in April 1961 to gather the necessary data and write a report
along guidelines established by the Bureau of Public Roads.
Basically, the purpose of the study was to develop a master plan to pro-
vide the entire Baltimore metropolitan area with a balanced transportation
system adequate to meet 1980 demands for the movement of people and goods.
The first step was to define the study area. The area selected encompasses
approximately 860 square miles and includes Baltimore City and the more
heavily populated regions of Baltimore, Howard, and Anne Arundel Counties.
The area is bounded on the east by the Chesapeake Bay; on the northeast by
the Baltimore-Hartford County line; and on the northwest by the Baltimore-
Carroll County line. The study area was then divided into 576 traffic
zones. The first zone created was the Central Business District of the
City of Baltimore. The remaining zones were created according to the fol-
lowing nattern: seven sectors were established according to population,
area, and traffic corridors; each sector was then divided into a maximum
of ten districts; each district was further divided into a maximum of ten
zones. Heavily trafficked zones were divided into subzones.
The second step was to conduct a thorough analysis of the physical charac-
teristics of the existing transportation system. Information was gathered
on street and highway mileage, traffic volume and canahility, traffic
control devices, operating speeds, travel times, accidents, land usage, and
the public transportation system. Some interesting trends came to light.
Between 1950 and 1960 the population of the metronolitan area increased by
000008
NARA Reference Copy
UNITED STATES OF AMERICA
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GENERAL SERVICES ADMINISTRATION
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National Archives and Records Service
Washington, DC 20408
OCCURAL
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20 percent while the population of the City of Baltimore decreased by
1.5 percent; motor vehicle registration increased by 61 percent; use
of public transit decreased by 50 percent. Thus, while population,
population dispersion, and auto ownership were increasing, urban trans-
portation planning was compounded by a decrease in the use of public
transit.
The third step was to conduct a thorough analysis of the travel habits
and travel characteristics of the region. Data obtained from the
analysis could then be used to provide a base from which projections
of future travel needs could be generated. It was determined that the
best means of providing the data required was a series Origin-Destination
surveys There were three surveys in all.
1. A home interview survey of approximately 5 percent of the
dwelling units in the study area
2. A work interview survey of approximately 15 percent of the
truck and taxi drivers in the study area
3. A roadside interview survey of at least 25 percent of all
motorists traveling across the study area boundaries while
counting stations were open.
Each of the surveys was conducted in accordance with procedures outlined
by the Bureau of Public Roads.
The sample for the home interview survey was obtained from the electric
company's address list of power meters in use throughout the study area
with the commercial accounts removed. Every twentieth address was selected
from each meter route. To compensate for seasonal variation, the sample
for each zone was subdivided into samples for interview in each of the
four seasons. Interviews were completed for 24,051 of the 27,600 dwellings
selected for sampling.
The first half of the home interview was designed to obtain "census type"
information. Data were gathered on type of dwelling unit; number of
residents, number of passenger cars owned, number of employed persons,
length of residence at that address, and home ownership status. In addi-
tion, data were gathered as to the occupation of each occupant, place of
employment, income, drivers license status, and first mode of travel to
work. Data on all person trips, other than trips made while driving trucks
or taxis, were also recorded for all household members over the age of five.
Trip information collected includes the origin, destination, and trip pur-
pose. Information on vehicle occupancy and the location, rate, and type of
parking facility was also recorded for auto driver trips.
000009
NARA Reference Copy
UNITED STATES OF AMERICA
GENERAL SERVICES ADMINISTRATION
National Archives and Records Service
Washington, DC 20408
The truck interview sample was selected on a 15 percent basis from truck
registration lists for the sample area. Truck owners were contacted at
their places of business and information was gathered concerning the
truck's use on the preceding day. Data were also obtained from the
vehicle operator, trip manifest, or route book. General data recorded
includes: type of business; gross weight of vehicle; vehicle type; and
total day's mileage. Travel information recorded includes addresses and
land uses of trip origins and destinations, time of day trip made, and
commodity transported. Trip purpose was also recorded.
For the taxi origin-destination survey, a sample was obtained by contacting
15 percent of the individuals holding taxi permits in Baltimore City and
Baltimore County. Taxi samples in Howard and Anne Arundel Counties were
selected from lists provided by each company operating within the study
area. Drivers of airport limousines were also interviewed. Data were
obtained from the drivers, as well as from manifests, and office route
books. Information was collected on trip origin address and land use; trip
destination and land use; and time of day the trip was made.
External roadside interviews were conducted at key highway points entering
the study area. 32 interview stations were established and a sample of
25-100 percent of the motorists entering the study area was taken at each
station for the time the station was open. The stations were in operation
from the second week in June 1961 until the middle of July 1961. 21 of the
stations were open from 6:00 a.m. until 10:00 p.m. The remaining eleven
stations were operated on a 24 hour basis. Information gathered includes:
trip origin and destination; land use of trip-ends inside the study area;
trip purpose; location of auto driver's residence or home base of truck;
location and purpose of trips within the area: entrance or exit route tn
and from the study area (for through trips only); number of occupants in
vehicle.
Both manual and mechanical traffic counts were made to test the validity
of the origin-destination data. On every point the data gathered were
within the limitations established by the Bureau of Public Roads.
000010
NARA Reference Copy
UNITED STATES OF AMERICA
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GENERAL SERVICES ADMINISTRATION
&
National Archives and Records Service
Washington, DC 20408
OTHERAL SUYSICE
R
4
Data gathered in the origin-destination surveys and in the physical
characteristic analysis were used to generate transportation planning
models under the following assumptions:
1. The volume and characteristics of traffic generated at any
point within the urban area are intimately related to the
type and intensity of development.
2. The movement of people and goods between various parts of the
urban area reflect the linkages between the relative propor-
tions of urban activity.
3. These movements have a definite and ascertainable relationship
to the development pattern.
4. The movements are repetitive and predictable when related to
the development characteristics which govern them.
The major model was the trip projection model which involved four
basic steps:
1. A regression analysis of the existing data to correlate trip
making with land use, population, and network characteristics.
2. Development of a modal-split program block, which would accept
the planning data together with variable parameters and "solve"
the projection model for trin ends.
3. An analysis of trip length characteristics and calibration of
the gravity model for the 1962 trins, using synthetic trip ends
estimated by the modal-split programs.
4. A test of synthetic 1962 travel patterns developed by the gravity
model as compared with actual 1962 traffic reported in the origin-
destination study.
Once the data for 1962 were verified and correlations established, pro-
jections were made for anticipated 1980 traffic volumes and patterns.
Highway plans were tested to see how well they fit into the model. Where
necessary the plans were modified, new long range plans were developed
based upon the model.
Although the collection of data was completed in 1963, forecasting techniques
were designed to take advantage of new data by substituting updated values
for any of several variables. This is an invaluable feature, as collection
of data, particularly through home interview surveys, is a costly process.
A new major study is not necessary if one variable is changing faster than
000011
NARA Reference Copy
UNITED STATES OF AMERICA
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GENERAL SERVICES ADMINISTRATION
National Archives and Records Service
Washington, DC 20408
CENTRAL SERVICES
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was anticipated, or a new factor presents itself. A new study is not
needed, therefore, to adapt the old study to meet environmental re-
strictions recently placed on highway construction.
Irregardless of the data's value for transportation planning, the data
also has value as a comprehensive study of the Baltimore metropolitan
area. The data present a very precise picture of Baltimore in 1962--
where people live, where they work, where they relax, where they shop,
how they travel, how much they travel. Baltimore is the sixth largest
city in the nation, and the Baltimore metropolitan area is the twelfth
largest metropolitan area in the nation. In many respects, it can be
considered a typical large American city, with typical urban problems,
including transportation problems.
But Baltimore is also unique in that travel in the diplomatic corridor
between Washington, D.C. and New York City must pass through the Baltimore
metropolitan area. Baltimore's relation to Washington, D.C. is also a
point of interest. The Baltimore metropolitan area and the Washington
metropolitan area are converging. The northern limit of the Washington
Metropolitan Transportation Study of 1968, meets the southern limit of
the Baltimore study of 1962. Yet the two cities compliment each other
rather than compete with each other. They are growing together for the
benefit of each.
Data collected in the Baltimore Metropolitan Area Transportation Study
have also been used in generating the Baltimore Area Mass Transportation
Plan and in the Northeast Corridor Intercity Travel Survey conduct by the
U.S. Department of Transportation. The methodology was used as a basis
for the Hong Kong Transportation Study.
The data, however, still remains virtually untapped. No analysis has been
done on the effect a four day week, ten hour day would have on the transpor-
tation of the metropolitan area. No study has been done to relate the
transportation mode selected by a worker to his occupation or industry.
Data collected in the transportation study could also be put to use in
urban housing planning or in sociological studies. The data presents a
very vivid portrait of Baltimore in 1962--a portrait of an American city
at one point in time.
NARA Reference Copy
000012
DATA ARCHIVES INVENTORY
(Read Instructions on reverse)
FOR
SECTION 1 - PHYSICAL CHARACTERISTICS
NARS
1. TYPE OF REEL
2. LENGTH (Feet)
3. WIDTH (Inches)
USE
ONLY
Reel
2400
1/2
SECTION II - RECORDING MODE INFORMATION
1. NUMBER OF TRACKS
2. DENSITY IN BPI
3. CHARACTER CODE USED
4. FRAME PARITY
9
800
EBCDIC
EVEN
5. MIXED MODE READING CONTROL
6. LOGICAL RECORD LENGTH
7. BLOCKING FACTOR (Logical records per
physical block)
LENGTH
WORDS
80
CHARACTERS
FRAMES
XX
FIXED
VARIABLE
UNDEFINED
20
8. LOGICAL AND PHYSICAL RECORD LENGTH CONTROL
(1)
(2)
(3)
(4) DESCRIBE
SPECIAL
NONE
COUNTER
A.
CHARACTER
LOGICAL
XX
(1)
(2)
(3)
(4) DESCRIBE
B.
PHYSICAL
XX
9A. END OF FILE PADDING CHARACTER
IN POSITIONS
TO
OF FIRST LOGICAL RECORD
AFTER LAST LOGICAL RECORD OR NONE
9B. IS LAST BLOCK FULL LENGTH No
OR SHORT Yes
7
9C. INDICATE END OF REEL PADDING FIELD IF DIFFERENT FROM ABOVE NONE
SECTION III . RECORDING SYSTEM INFORMATION
1. CPU MANUFACTURER
2. MODEL NO.
UNIVAC SERIES 70 (Formerly RCA SPECTRA 70)
70/45 F
3. TAPE DRIVE MANUFACTURER
4. MODEL NO.
UNIVAC SERIES 70 (Formerly RCA SPECTRA 70)
70/442
5. OPERATING SYSTEM USED TO GENERATE FILE
A. NAME
B. VERSION NUMBER
C. LEVEL OR TYPE
TDOS
21
6. FILE STRUCTURE INFORMATION (See reverse for Instructions)
M 0
LABELS 0
(LABEL LENGTH)
) TM
DATA RECORDS TM ()
EOR TM EOF TM
2
2. FILE ID LOCATION
8, FILE ID CONTENTS
9. REEL SEQUENCE NUMBER
10. CHECKPOINT LOCATION (If applicable)
LOCATION
:1, LOGICAL RECORD COUNT LOCATION
12, PHYSICAL RECORD COUNT LOCATION
13, HASH OR CONTROL TOTALS (If applicable, describe)
SECTION IV . REMARKS
For = BMATS Data Files 1 and 2 (Tape No. DOT 396)
BMATS Data Files 3 and 4 (Tape No. DOT 397)
000013
GENERAL SERVICES ADMINISTRATION
GSA FORM 7091 (4.71)
NARA Reference Copy
DATA ARCHIVES INVENTORY
(Read Instructions on reverse)
FOR
SECTION I - PHYSICAL CHARACTERISTICS
NARS
i. TYPE OF REEL
2. LENGTH (Feet)
3. WIDTH (Inches)
USE
ONLY
Reel
2400
1/2
SECTION II - RECORDING MODE INFORMATION
1. NUMBER OF TRACKS
2. DENSITY IN BPI
3. CHARACTER CODE USED
4. FRAME PARITY
9
800
EBCDIC
Even
5. MIXED MODE READING CONTROL
6. LOGICAL RECORD LENGTH
7. BLOCKING FACTOR (Logical recora. er
80
physical block)
LENGTH
WORDS
CHARACTERS
FRAMES
XX
FIXED
VARIABLE
UNDEFINED
1
8. LOGICAL AND PHYSICAL RECORD LENGTH CONTROL
(1)
(2)
(3)
(4) DESCRIBE
SPECIAL
NONE
COUNTER
A.
CHARACTER
LOGICAL
(1)
(2)
(3)
(4) DESCRIBE
B.
PHYSICAL
9A. END OF FILE PADDING CHARACTER
IN POSITIONS
TO
OF FIRST LOGICAL RECORD
AFTER LAST LOGICAL RECORD OR NONE
9B. IS LAST BLOCK FULL LENGTH
OR SHORT
?
9C. INDICATE END OF REEL PADDING FIELD IF DIFFERENT FROM ABOVE
SECTION III - RECORDING SYSTEM INFORMATION
1. CPU MANUFACTURER
2. MODEL NO.
UNIVAC Series 70 (Formerly RCA Spectra 70)
70/45 F
3. TAPE DRIVE MANUFACTURER
4, MODEL NO.
UNIVAC Series 70 (Formerly RCA Spectra 70)
70/442
5. OPERATING SYSTEM USED TO GENERATE FILE
A. NAME
B. VERSION NUMBER
C. LEVEL OR TYPE
TDOS
21
6. FILE STRUCTURE INFORMATION (See reverse for Instructions)
0
0
0
2
TM
LABELS
(LABEL LENGTH;
) TM
DATA RECORDS TM
EOR TM EOF TM
7. FILE ID LOCATION
8. FILE ID CONTENTS
9. REEL SEQUENCE NUMBER
10, CHECKPOINT LOCATION (If applicable)
LOCATION
11, LOGICAL RECORD COUNT LOCATION
12. PHYSICAL RECORD COUNT I.OCATION
13. HASH OR CONTROL TOTALS (If applicable, describe)
SECTION IV & REMARKS
For BMATS Link Data File (1962 Highway Network)
000013A
GENERAL SERVICES ADMINISTRATION
GSA FORM 7091 (4.71)
NARA Reference Copy
Wilbur Smith and Associates
000001
3-62
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
TRAFFIC ZONING PROCEDURES
INTRODUCTION
Procedure for the establishment of traffic zones for the
Baltimore Area Trasnportation Study follow, in general, guide
lines set forth in the "Manual of Procedures for Home Interview
Traffic Study" published by the Bureau of Public Roads.
Tentative zones, both internal and external, were established
and numbered in a manner suitable for machine tabulation of trip
data. In establishing zone boundaries, consideration was given to
such factors as:
1. Land use
2. Population
3. Political jurisdictions
4. Cordon and screen lines
5. Census tract and election district lines
6. Expressway systems, both existing and proposed
7. Trip generation potential
8. Previous transportation study zones
9. Central business district (CBD) boundaries
10. Zone size and shape
After the tentative internal zones were established and the
central business district defined, Sector lines were developed.
These lines divided the internal study area into seven pie shaped
sections which were numbered 1 thru 7. Section 0 was reserved for
the CBD.
Sectors were then divided into a maximum of ten Districts
(0 thru 9) and each District contained a maximum of ten zones.
This method resulted in a grand total of 78 districts composed of
579 zones. The sub-zoning was accomplished using census enumera-
tion districts and old survey zone boundaries. This resulted in
a total of 3,314 sub-zones.
The external area was divided into two classifications for
zoning purposes.
1.
The "adjacent area" - (adjacent Maryland counties
including the Washington Metropolitan Area)
--coded with the 9 digit
2.
The "remote area" - (outlying Maryland counties
and all other states)
--coded with the 8 digit
The "adjacent area" was zoned by County election districts and
coded to the local name places (villages, crossroads, etc.) within
the county. The "adjacent area" included all counties from Freder-
ick on the west to Cecil Coup -J on the east, and Prince Georges on
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000014
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the south. The District of Columbia, Arlington and Fairfax
counties in Virginia are also included in the "adjacent area".
The "remote area" was zoned and coded by using the standard
5 digit IBM Numerical Code for State and County with the prefix of
eight.
INTERNAL ZONING
Internal zoning of the Baltimore Area Transportation Study was
accomplished in accordance with the 1961 agreement for the origin
and destination study. Zoning controls established by the agree-
ment are:
a.
All forms and procedures shall conform to the
standards provided by the Bureau of Public Roads
b.
The consultant shall use, as far as practical,
the zones set forth in the 1945-46 Transportation
Study.
MANUAL OF PROCEDURE
The Bureau of Public Roads Manual of Procedure for Home Inter-
view Traffic Study sets up the following guide lines:
1.
Divide into areas suitable for machine tabula-
tion of trips.
2.
Land use is one of the most important considera-
tions in dividing area.
3.
Other important considerations are the shape
and size of zones.
4.
The manual recommends an arbitrary method of
sub-dividing internal area where area is divided
into Sections; then into Districts, Zones and
finally into Sub-zones.
5.
Each city block in the central business district
is usually designated as a sub-zone; consequently,
a zone may consist of up to ten blocks. Some of
the major blocks have been designated as individual
zones.
6.
The zone is the most important unit for use in
analysis. The sub-zone allows for studying
data for special analysis,
1945-46 TRANSPORTATION ZONES
The 1945-46 Transportation Study covered an area of approximate-
ly 170 square miles with an estimated population of 1,100,000.
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000003
The political jurisdictions involved in this area are Baltimore
City and Baltimore County. he 1961-62 Transportation Study in-
volves 860 square miles and a population of approximately 1,532,000.
The political jurisdictions involved in the current study include
Anne Arundel, Baltimore and Howard Counties and Baltimore City.
Since the 1961-62 study is considerably larger in scope, it
was not possible to utilize the same zoning basis used in the 1945-
46 study. However, the 1945-46 zone lines were given careful
consideration while sub-zoning the 1961 study which makes it possi-
ble to reassemble 1961 trip data on a sub-zone basis and to summarize
and present it for comparison with 1945-46 zones.
PREPARATION OF WORK MAP
1. An overlay of the 1"=1500' City of Baltimore map was drawn
with census tracts delineated and population posted. The express-
way system (present and proposed) was also shown.
2. The State highway maps of the adjacent counties were en-
larged to a 1"=1500' and drawn onto overlay paper. This overlay
showed census tracts, population and expressway systems (present
and proposed) and was matched with the Baltimore City overlay.
3. Census tracts were then grouped together into zones of
nearly equal trip generating power. (Zones of 5,0.00 population was
the initial criteria used.)
CENTRAL BUSINESS DISTRICT
There exists no legal or official definition of the central
business district. However, a precedent was established by the
1945-46 Transportation Study. In that study the CBD covered the
area between Green Street and the Fallsway and from Centre Street
to Camden and Conway Streets. It also included an area to the
north between Eutaw Street and Park Avenue.
Census tract 4-1 also covers the entire CBD. It extends be-
tween Paca Street and the Fallsway, and between Franklin and Pratt
Streets.
The limits of CBD which were finally selected, with city and
state approval, were Green Street on the west, Fallsway on the
east, Centre Street on the north, and Pratt Street on the south.
SECTORS AND DISTRICTS
The study area was divideC into seven sectors in addition to
the CBD. The prefix designation "0" was reserved for the CBD and
the prefix digits one through seven for the seven suctors. The
8 and 9 prefix digits were used in the external zoning. (See
External Zoning Procedures.)
Several alternatives were considered in dividing the area
from the CBD boundary to the cordon line into seven sections. These
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000004
alternatives were (1) population, (2) area, and (3) traffic
corridors. Extreme variations occurred in the population in the
various sections outside of Baltimore City. Therefore, the area
was divided into relatively even sectors with consideration given
to natural barriers, census tract lines and traffic corridors. In
all cases, the sector lines followed the previously established
zones.
Each sector was then divided into a maximum of ten districts
of no more than ten zones each. In addition, the district lines had
to conform to political jurisdiction boundaries and to the screen
line along Gwynns Falls and Dead Run.
SUB-ZONING
The objective in sub-zoning the study was to split the zones
into sufficient detail so that the 1945 Transportation zones, census
tracts, enumeration districts and land use can be inter-related and
cross indexed to the present study data.
Maps were drawn of census tracts with the Enumeration Districts
and of the 1945 transportation zones. The 1961 transportation
zone map was overlayed over these maps.
Existing land use maps which had been furnished by the counties
and Baltimore City, were examined. Mixed land use presented a
sub-zoning problem; however, there seemed to be a fairly high degree
of correlation between the enumeration districts and the existing
land use. Where large tracts of land were encountered within enumer-
ation districts, the districts were further divided.
EXTERNAL ZONING
The external zoning procedure consisted basically of dividing
the nine surrounding Maryland counties; Cecil, Harford, Baltimore,
Carroll, Frederick, Montgomery, Howard, Prince Georges and Anne
Arundel into zones. At a later date, Arlington and Fairfax counties
of Virginia and the District of Columbia were added. For areas
more remote the county code was used as given in the IBM code marual.
A six digit code was also used for the external zones. The
first digit designates whether the place was in the survey area,
one of the surrounding counties, a more distant county or in
another state. The first digit was nine for the surrounding
counties and eight for everything remaining in the external. This
first digit of eight plus the IBM five digit code comprised the
six digit code that we used.
The second digit of the code for the adjacent area designates
the county; zero was used for Frederick County and the numbers
proceeded clockwise around the study area.
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NARA Reference Copy
000005
Second Digit
County
0
Frederick
1
Carroll
2
Baltimore*
3
Harford
4
Cecil
5
Anne Arundel*
6
Howard*
7
Montgomery
8
Prince Georges
9
Arlington, Fairfax and D. C.
*Part of county lies within study area
The next step was to subdivide the eleven counties and the
District of Columbia into smaller zones. An attempt was made to
create zones in accordance with the election districts. In several
instances it was necessary to divide an election district into two
zones or to combine two or more districts into one zone. In Fair-
fax and Arlington County, Virginia, the District of Columbia and
the adjoining areas of Montgomery and Prince Georges counties it
was necessary to use statistical areas rather than election districts.
The third digit designates the district which may be composed
of several zones. The fourth digit then specifies the actual zone.
For both the third and the fourth digit the code number increases
in a clockwise direction within the county.
Introducing the District rather than using each zone individual iy
was for a specific purpose. Unless actual zone to zone trips wer'
needed a three digit code might be used rather than one of four
digits. This placed a limit of ten zones per district and ten
districts per county on the zoning; however, this was adequate.
Washington, taken as one district, was then sub-divided into five
zones; the Central Business District, North West, North East,
South East and South West. Arlington County was taken as a single
zone whereas Fairfax County was subdivided.
County and D. C. maps were prepared showing each zone with its
four digit designation. These maps, the scale of which was one
inch to a mile, were also used for the external coding. A composite
map of the entire area was also made showing the location of the
Districts and zones. The scale of this map was one-half an inch
to a mile.
The remaining two digits refer to a name place within the zone.
Each name place and its code was written on a 3x5 card, placed in
alphabetical order and then a listing was made. This listing was
used for coding purposes.
000018
NARA Reference Copy
000006
BALTIMORE AREA TRANSPORTATION STUDY
(1961)
EXTERNAL ZONE (Adjacent Area)
ZONING
CODE
COUNTY
DISTRICTS
ZONES
90
Frederick
4
11
91
Carroll
4
14
92
Baltimore
3
5
93
Harford
5
15
94
Cecil
3
10
95
Anne Arundel
6
23
96
Howard
2
3
97
Montgomery
5
15
98
Prince Georges
6
16
99
D.C. & Va,
3
8
TOTAL
41
120
Note: Zoning Districts are usually groups of County Election Districts
000019
NARA Reference Copy
000007
BALTIMORE AREA TRANSPORTATION STUDY
(1961)
ZONE NUMBERING SYSTEM
1.
INTERNAL CODING
X
X
X
X
X
0
00-99
Sub
District (0 to9)
Zone
Sector (0-7)
Zone (0 to 9)
Zero
2.
A. EXTERNAL CODING - ADJACENT AREA
9
X
X
X
X
X
00-99
Adjacent Area
County (o to 9)
District (0 to9)
(Gps. of E. E.D. E.D.'s) 's)
Election District
(0 to 9)
Local Name
Place
(Town, Village,
- ( . 07,
B. EXTERNAL CODING - REMOTE AREA
8
X
X
X
X
X
01 to 53
001 to 999
Remote Area
State
County
000020
NARA Reference Copy
BALTIMORE AREA TRANSPORTATION STUDY
(1961)
NUMBER OF INTERNAL DISTRICTS, ZONES AND SUB-ZONES
Baltimore
Baltimore
Anne
Total
Howard
City
County
Arundel Co.
County
SECTOR
Sub
Sub
Sub
Sub
Dist.
Sub
Zone
Zone
Dist.
Zone
Zone
Dist.
Zone
Zone
Dist.
Zone
Zone
Dist.
Zone
Zone
O (CBD)
10
91
339
10
91
339
1
9
58
334
4
28
182
5
30
152
2
10
64
329
3
22
139
3
15
78
2
11
39
2
16
73
3
10
84
500
4
37
331
5'
38
136
1
9
33
4
10
62
448
4
40
353
6
22
95
5
10
74
501
4
40
329
6
34
172
6
9
79
498
5
49
337
4
30
161
10
67
365
5
26
168
5
41
197
576
37
TOTAL
78
579
3314
39
333
2178
29
180
839
7
41
191
3
25
106
000021
800000
NARA Reference Copy
SUBDIVISION OF SURVEY AREA INTO SECTORS AND DISTRICTS
BALTIMORE AREA TRANSPORTATION STUDY
000000
CORDON LINE
External Area Prefix Codes
BALTIMO HARFORD RR
8 Remote Area
9 Adjacent Area
5B
49
Co)
Co.
US
48
CO
59
56
47
HARFORD
46
67
CARROLL
BALTIMORE
57
45
44
St
38
55
L.
52
65
68
53
37
42
43
A
62
4,
35
79
"
41
5
51
63
33
A,
61
6
HOW ARD
3
31
50
L
to
34
64
30
60
Co.
32
0
73
78
39
36
70
71
76
20
10
22
72
7
CORDON LINE
2
"
74
21
75
25
&
24
12
11
23
LINE
for
13
Co
27
ANNE ARUNDEL 26
14
CORDIGN
ce
29
16
15
28
17
18
CORCUN
000022
NARA Reference Copy
000010
BALTIMORE metropolitan AREA
TRANSPORTATION STUDY
CROSS INDEX
1961 TRAFFIC ZONES, ENUMERATION DISTRICTS
CENSUS TRACT CODE, 1945 ZONES
Wilbur Smith & Associates
1961
000023
NARA Reference Copy
BMATS
Census Tract Code
The dwelling unit interview form has four blocks for recording Tract No. (Census
Tract). To prevent duplication of census tract numbering between the various
counties and city, and to eliminate the use of alphabetic letters in the census
tract designations, the following six digit codes were used.
Balto. City, Anne Arundel & Howard Co's
First digit code designater
Sixth digit alphabetic code
Code 1 Baltimore City
A=1
R=6
2 Baltimore County
B=2
S=7
3 Anne Arundel Co.
C=3
T=8
4 Howard Co.
№4
U=9
P=5 NONE=0
Baltimore City
Baltimore County
1 X X - XXX
2 XX - XXX
Balto. City
Ward
Neighbor-
hood
(Alpha)
Balto. County
Election
District
1950
Census Tract
Sub Zone
CENSUS TRACT
CENSUS TRACT
Anne Arundel Co.
Howard County
3 X X - X X X
4 XX - X X X
Anne Arunded Co.
Elect. Dist.
Sub Zone
Enum. Dist.
Sub zone (Alpha)
Howard County
Election Dist.
Enumeration Dist.
Sub zone (Alpha)
Note: Above Enumeration District 100, the 1 was dropped and only last two
digits utilized in coding.
NARA Reference Copy
24
000012
Gross Index
1
Traffic Zone - Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enwn
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
00001
56P
104-020
010
01302
50
104-010
022
02602
50
OTC-HOL
020
02
56P
104-020
010
03
50
104-010
022
03
50
104-010
020
03
56P
104-020
010
04
50
104-010
022
04
50
104-010
020
04
56P
104-020
010
07305
50
104-010
022
05
50
104-010
020
05
51
204-070
010
06
50
104-010
022
06
so
104-010
020
06
51
104-010
010
07
50
104-010
022
07
50
104-010
020
00201
56P
104-020
010
08
50
104-010
022
08
50
104-010
020
02
56P
104-020
010
01401
50
104-010
921
02701
50
104-010
021
03
51
104-010
010
02
50
104-010
021
02
50
104-010
021
o4
51
104-010
010
03
50
104-010
021
03
50
104-010
021
05
51
104-010
010
01501
50
104-010
021
04
50
104-010
021
00201
56P
104-020
010
02
50
104-010
021
05
50
104-010
021
02
51
104-010
0.0
03
50
104-010
021
06
50
104-010
021
03
51
104-010
010
04
50
104.010
021
07
50
104-010
02].
00301
51
104-010
071
05
50
104-070
021
03001
50
104-010
023
02
52
104-010
011
06
50
104-010
021
02
50
104-010
023
03
51
104-010
011
01601
50
104-010
021
03100
50
104-010
023
04
51
104-010
011
02
50
104-010
021
03201
50
104-010
023
00400
52
104-010
011
03
50
104-010
021
02
50
104-010
023
00501
51
104-010
011
04
50
104-010
021
03300
50
204-010
023
02
51
104-010
011
01707
50
1.04-010
020
03401
50
104-010
023
03
51.
atcrtion
011
02
50
104-070
020
02
so
104-010
023
04
51
104-010
0.1.1
03
50
104-010
020
03500
50
304-010
022
05
51.
104-010
011
04
so
104-010
020
03601
50
104-010
022
06
51
104-010
011
05
so
104-010
020
02
50
104-010
022
07
51
104010
011
06
50
104-010
020
03
50
104-010
022
00601
51.
104-010
012
01801
51
104-010
020
03701
50
104-010
022
02
51
104-010
012
02
51.
104-010
020
02
50
104-010
022
00701
51.
104010
012
02001
51
104-010
012
03800
50
104-010
022
02
51.
104-010
012
02
51
104-010
012
C4001.
51
1.01010
020
00801.
51
104 010
012
021.01.
51
104-010
020
62
51
104-010
020
02
51.
1.04 01.0
012
02
51.
104-010
020
03
St.
104-010
0.
00901.
51.
104.010
03
104-010
020
04101
so
704-010
02
51
104010
04
1.04-010
020
02
50
104 010
020
03
51
104-010
01.2
02201
so
104.010
020
03
50
104-010
020
01001
50
1040
02
50
104-010
020
04
50
104-010
020
02
50
104010
0
03
50
104-010
020
04201
50
104-010
02
03
50
204-010
023
04
50
104-010
020
02
50
104-010
022
01101
50
104-010
023
05
50
104-010
020
03
50
104-010
022
02
50
104-010
023
02301.
50
104-010
022
04
50
104-010
022
03
50
104-010
023
02
50
104-010
022
04300
so
010-701
022
04
50
104-010
023
03
50
104-010
022
04400
50
1.04.01.0
020
05
50
104010
023
04
50
104-010
022
04501
50
-610
00
06
50
104-010
023
05
50
104-010
022
02
50
1.04-010
01.201.
50
104-010
021
06
50
104-010
022
03
50
104-010
D.
02
50
104-010
021
02401
52
104-010
012
04
50
104-010
040
03
50
104-010
021
02
51
104-010
012
05
50
104-010
040
OLL-
so
104-010
021
02501
51
104-ORC
020
04601
51
104-010
040
05
50
104-010
021
02
51
104-010
020
02
51
104-010
040
06
so
104010
021
03
51
104-010
020
03
51
104-010
040
07
50
104-010
021
04
51
104-010
020
04
31
104-010
040
01.301.
50
104-010
023
02601
50
104-010
020
34701
51
10400
000025
020
NARA Reference Copy
000013
2
Cross Index
Traffic Zone - Census Tracts
Baltimore City
61
snum
Census
1945
1961
Enum-
Census
1945
1961:
saum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
04702
51
104-010
020
06601
52
104-010
U30
08501
31
104-010
031
03
51
104-010
020
02
51
104-010
030
02
5.2
104-010
031
04
51
104-010
020
03
51
104-010
030
08601
51
104-010
031
05
51
104-010
020
04
51
104-010
030
02
51
104-010
031
06
51
104-010
020
07001
51
104-010
0.10
08701
31
104-010
031
05001
51
104-010
012
02
51
104-010
0.10
02
51
104-010
031
02
51
104-010
012
03
51
104-010
010
03
238P
111-020
U51
03
51
104-010
012
04
51
104-010
010
04
238P
111-020
051
05101
51
104-010
012
05
51
104-010
010
05
238P
111-020
051
02
51
104-010
012
07101
57
104-020
010
05
238P
111-020
051
03
51
104-010
012
02
57
104-020
010
07
38P
111-020
051
05201
51
104-010
012
03
57
104-020
010
08
?38P
111-020
051
02
51
104-010
012
04
57
104-020
0.10
09
32
104-010
031
03
51
104-010
012
05
57
104-020
010
08802
239
111-030
U50
05301
51
104-010
012
07201
51
104-010
010
02
239
111-030
050
02
51
104-010
012
02
51
104-010
010
03
239
111-030
050
03
51
104-010
012
07301
57
104-020
010
04
239
111-030
050
04
51
104-010
012
02
57
104-020
010
05
238P
111-020
051
05
51
104-010
012
03
57
104-020
010
06
238P
111-020
052
05401
51
104-010
031
07401
51
104-010
030
07
238P
111-020
051
02
51
104-010
031
02
51
104-010
030
08
238P
111-020
051
03
51
104-010
031
07501
52
104-020
030
09
238P
111-020
051
05501
51
104-010
031
02
52
104-020
030
10
238P
111-020
051
02
51
104-010
031
07601
52
104-010
030
0890...
240
111-030
050
03
51
104-010
031
02
51
104-010
030
02
240
111-030
050
05600
52
104-010
03.1
07701
52
104-020
030
03
240
111-030
050
05701
51
104-010
031
02
52
104-020
030
04
PLO
111-030
050
02
51
104-010
031
03
52
104-020
030
05
240
111-030
650
03
51
104-010
031
07801
496
117-010
030
09001
51
204-010
040
06001
51
104-010
U11
02
496
117-010
030
02
51
204-010
040
02
51
104-010
011
03
496
117-010
030
03
51
204-010
040
03
51
104-010
011
07901
496
117-010
030
04
51
204-010
040
04
51
104-010
011
02
496
117-010
030
05
50
104-010
040
06101
51
104-010
011
03
496
117-010
030
09101
50
104-010
041
02
53.
104-010
011
08001
52
104-010
030
02
50
104-010
041
03
51
104-010
011
02
51
104-010
030
09201
50
10L-010
041
04
51
104-010
011
03
51
104-010
030
02
50
104-010
041
05
51
104-010
011
04
51
104-010
030
03
50
204-010
041
06
51
10L-010
011
08101
51
104-010
031
04
50
204-010
041
0c201
51
104-010
011
02
51
104-010
031
09301
50
104-010
041
02
51
104-010
011
08201
51
104-010
031
02
50
104-010
041
03
51
104-010
011
02
51
104-010
031
03
05
104-010
041
24
51
104-010
011
03
51
104-010
031
04
50
204-010
041
05
51
104-010
011
04
51
104-010
031
09401
50
104-010
041
U63U:
51
104-010
011
05
51
104-010
031
02
50
104-010
041
02
51
104-010
011
08301
52
104-010
031
03
50
104-010
041
03
51
104-010
011
02
51
104-010
031
04
50
104-010
041
04
51
104-010
011
03
51
104-010
031
05
de
104-010
041
06401
11
104-010
031
04
51
104-010
031
06
50
104-010
042
02
51
104-010
031
05
51
104-010
031
07
50
104-010
041
06501
51
104-010
031
08401
51
104-010
030
08
50
104-010
041
02
51
104-010
031
02
52
104-010
030
09
50
104-010
041
000026
NARA Reference Copy
Cross Index
000014
Traffic Zone the Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
09410
50
104-010
041
10208
626
122-020
201
11102
657N
124-040
ILO
09501
50
104-0.10
041
09
626
122-020
121
03
656P
124-040
140
02
50
104-010
041
10
628N
122-020
121
o4
656N
124-040
140
03
232P
111-010
051
11
628P
122-020
121
05
656N
124-040
141
04
232P
111-010
051
10301
603
121-010
211
06
638P
123-020
140
05
232P
111-010
051
02
604
121-010
201
07
657P
124-040
140
09601
232P
111-010
051
03
005
121-010
20.1
08
658P
124-040
140
02
50
104-010
041
04
606
121-010
201
09
650
124-040
141
03
50
104-010
042
05
607
121-010
121
10
639N
123-030
140
04
50
104-010
041
10401
606
121-010
201
11
658N
124-040
140
09701
50
104-010
040
02
607
121-010
121
12
658P
124-040
141
02
50
104-010
040
03
610
121-010
201
13
658P
124-040
141
03
50
104-010
040
04
610
121-010
121
14
640P
123-030
140
04
51
104-010
040
05
609
121-010
121
15
658P
124-040
140
05
51
104-010
040
06
610
121-010
121
16
646P
124-010
141
06
51
104-010
040
10501
608
121-010
121
11201
647
124-020
747
09801
50
104-010
040
02
607
121-010
121
02
646N
124-010
141
02
50
104-010
040
03
609
121-010
121
11301
640P
123-030
140
03
51
104-010
040
04
610
121-010
121
02
658P
124-040
140
04
51
104-010
040
10601
629
123-010
131
03
658P
124-040
141
05
51
104-010
040
02
630
123-010
131
11402
646N
124-010
141
09901
232P
111-010
051
03
631
123-010
121
02
645
124-010
141
02
232P
111-010
051
04
632
123-010
12)
-03
644
224-010
THE
03
232P
111-010
051
05
633
123-010
121
04
646P
124-010
141
04
238P
111-020
051
06
633
123-010
131
05
658P
124-040
741
05
238P
111-020
051
07
634
123-010
131
06
641
124-010
141
10001
204-010
001
08
634
123-010
121
07
641
124-010
the
02
104-010
001
10701
635
123-020
140
08
S-642
124-010
142
03
104-010
001
02
052
124-030
140
09
S-643
124-010
7/12
04
104-010
001
03
651
124-030
140
12001
685
125-031
120
05
104-010
001
04
036
123-020
140
02
686P
125-031
120
06
104-010
001
05
653
124-030
140
03
686N
125-031
120
10101
619
122-010
140
06
654
124-030
140
12101
680
125-022
120
02
620P
122-010
UOU
07
055
124 030
140
02
680
125-022
120
03
621N
122-010
000
10801
019
122-010
140
03
670
125-021
120
04
620P
122-010
140
02
619
122-010
140
04
670
125-021
120
05
620P
122-010
131
03
619
122-010
140
05
679
125-021
120
06
621N
122-010
131
10901
648
124-020
141
06
678
125-021
120
07
619
122-010
140
02
619
122-010
141
07
677
125-021
120
08
620N
122-010
140
03
648
124-020
240
08
674
125-021
120
09
621P
122-010
131
04
649
124-020
240
09
676
125-021
120
10
622N
122-010
131
05
650
124-020
140
10
675
125-021
120
11
620N
122-010
240
06
650
124-020
141
12201
671
125-021
120
12
622P
122-010
131
07
647
124-020
141
02
670
125-021
120
13
622P
122-010
121
11001
637P
123-020
131
03
672
125-021
120
10201
624
122-0 0
211
02
638N
123-020
131
04
674
125-021
120
02
623N
122-020
201
03
639N
123-020
131
05
678
125-021
120
03
623N
122-020
000
04
640P
123-020
131
06
673
125-021
120
04
625
122-020
201
05
639P
123-030
131
12301
680
125-022
120
05
627
122-020
201
06
540N
123-030
231
02
670
125-021
120
06
627
122-020
121
07
640P
123-030
131
12401
798
126-110
130
07
623P
122-020
121
11101
637N
123-020
140
02
696
125-040
130
051
NARA Reference Copy
000027
Cross Index
000015
Traffic Zone - Census Tracts
Baltimore City and Anne Arundel County
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
1961
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
12501
720
125-060
110
14001
49
351.-480
15010
15
334-150
125-060
111
"
02
720
47
35:1-470
15011
14
334-140
03
125-060
11
718N
111
43
351-430
15101
18s
333-187
125-040
If
13001
698
130
44
351-440
15102
18R
333-186
#
13101
698
125-040
130
45N
351-454
15103
19
333-190
02
696
125-040
130
=
45P
351-455
15104
18P
333-185
03
696
125-040
110
L
46N
351-464
15105
20
333-200
04
695
125-040
110
=
46R
351-466
15106
18N
333-184
05
694
125-040
110
14002
42
352-420
15107
17S
333-177
06
694
125-040
110
14101
56
352-560
15108
17R
333-176
07
720
125-060
110
14102
55
352-550
15109
16T
333-168
13201
707
125-050
110
14103
53N
352-534
15110
No
02
720
125-060
111
14104
53P
352-535
15111
17P
333-175
03
718N
125-060
111
14105
53N
352-534
15112
17N
333-174
04
718N
125-060
111
14106
49N
351-494
16001
36
357-360
05
71,P
125-060
111
14107
51
351-510
16002
34P
357-345
06
719
125-060
111
14108
50
351-500
16003
37
357-370
13301
698
125-040
130
14109
49P
351-495
16004
34N
357-344
02
699N
125-040
130
14201
56
352-560
16005
35
357-350
03
697
125-040
130
14202
53N
352-534
16101
62
356-620
04
699N
125-040
102
14203
54
352-540
16102
60P
356-605
05
697
125-040
102
14204
75
353-750
16201
65
356-650
699P
125-040
102.
14205
76N
353-764
16202
64
356-640
07
697N
125-040
102
14206
74
353-740
16202
63
356-630
13308
694
125-040
102
14207
74
353-740
16203
63
356-630
09
700
125-040
102
14301
41P
358-415
16301
23
332-230
10
705
125-040
102
14302
41N
358-414
16302
22
332-220
11
704
125-040
102
14303
40P
358-405
16303
21
332-210
12
703
125-040
102
14304
40N
358-404
16304
24
332-240
13
702
125-040
102
14305
39
358-390
16401
33N
331-334
14
701
125-040
102
14306
38
358-380
16402
25
331-250
15
706
125-040
101
14401
61
355-610
16403
33P
331-335
16
704
125-040
102
14402
60N
355-604
16404
33R
331-336
13401
709
125-050
102
14403
59
355-590
16405
32
331-320
02
707
125-050
101
14404
408
3
107
16406
31
331-310
03
708
125-050
101
14405
56
352-560
16407
30
331-300
14265
04
712
125-050
101
14501
68N
354-684
16408
29
331-290
05
716P
125-050
101
14502
70
355-700
16409
27R
331-276
06
710
125-050
102
14504
69
355-690
17001
8
336-080
07
711N
125-050
101
14505
68R
355-686
17002
7
336-070
08
716N
125-050
101
14506
68P
335-685
17003
6P
336-065
09
711P
125-050
101
14508
58
352-580
17004
6N
336-064
10
715
125-050
101
14509
60R
355-606
17005
5
336-050
11
714
125-050
101
14510
57
352-570
17101
12
336-120
13501
708
125-050
101
15001
16S
334-167
17102
9
336-090
02
713
125-050
101
15002
16R
334-166
17103
10P
336-205
03
714
125-050
101
15003
17104
10N
336-104
+
715
125-050
101
15004
16P
334-164
17105
4
336-040
716P
125-050
101
15005
16N
334-140
17201
26P
337-265
06
716P
125-050
101
15006
13R
334-136
17202
118P
337-185
13601
716P
125-050
100
15007
13P
334-135
17203
119
337-190
02
S717
125-050
100
15008
13N
334-134
17301
116
337-160
02
716P
125-050
100
15009
13S
334-137
17302
117
337-170
17303
115
337-150
000028
NARA Reference Copy
*17304
17401
see
pg
5
Cross Index
5
Traffic Zone - Census Tracts
COC016
Anne Arundel County
1961
Enum
Census
1945
1961
Enum Census
1945
1961
Enum
Cens
Sub
Dist
Tract
Zone
Sub
Dist Tract
Zone
Sub
Dist
Trace
2
Zone
Zone
Zone
17402
121
337-210
18601
103N 348-034
17403
120
337-200
II
102
348-020
17501
122
336 230
18602
172
321-720
'02
1232
336 220
18602/
174
322-740
17601
2P
336-025
17602
2R
336-026
17603
2N
336-024
*17304
114
337-140
17604
lP
336-015
17305
1135
337-135
17605
1N
336-014
17306
113N
337-134
17606
3
336-030
17401
125
337-250
17701
124P
336-245
17702
124N
336-244
17703
122
336.220
18001
83N
342-834
18101
97P
343-975
18102
85F
343-855
18103
85N
343-854
18104
84R
342-846
18105
84P
342-845
18106
97R
342-976
18107
98R
342-986
18108
84s
342-847
18109
84N
342-844
18110
86N
342-864
18111
86P,
342-865
18112
83R
342-836
18113
83P
342-835
18114
86R
342-866
18115
86s
342-867
18201
111
335-110
8202
112
335-120
18203
110
335-100
18204
109
335-090
18205
106
335-060
18206
108
335-080
18207
107
335-070
18301
98N
343-984
18302
98P
348 985
18401
104N
335-044
18401
107
335-070
18402
104P
335-045
18403
105
335-050
18404
118N
335-184
18405
26N
335-264
18406
26R
335-266
18407
26S
335-267
18408
27P
335-275
18409
27N
335-274
18501
98R
342-986
18502
98P
348-985
18503
98N
334-984
343-984
18504
103P
348-035
000029
NARA Reference Copy
6
Cross Index
000017
Traffic Zone - Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census
-945
1961
Entra
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
20001
56P
104-020
211
2050:
549
119-030
211
21401
680
125-022
200
02
50P
104-020
302
04
550
119-030
211
02
680
125-022
200
03
57
104-020
302
05
547
119-030
211
03
680
125-022
200
04
56N
104-020
302
06
540
119-030
211
04
682
125-022
200
05
55P
104-020
302
07
546
119-030
302
22001
669
125-012
210
06
55N
104-020
302
08
547
119-U30
302
02
669
125-012
200
07
52
104-020
302
20601
557
119-040
211
22101
S666
125-012
210
08
53N
104-020
302
02
555
119-040
211
If
665
125-012
210
09
53P
104-020
302
03
556
119-040
302
02
669
125-012
210
10
54
104-020
302
04
554
119-040
302
03
669
125-012
210
20101
518
118-010
302
05
554
119-040
211
04
668
125-012
210
02
517
118-010
302
06
553
119-040
211
05
667
125-012
210
03
516
118-010
302
07
533
119-040
302
22201
590
120-060
301
04
514
118-010
302
08
552
119-040
302
02
591
120-060
301
05
515N
118-010
313
09
556
119-040
211
03
589
120-060
301
06
512P
118-010
313
20701
536
120-030
211
04
591
120-060
210
07
525
118-c2)
302
02
575
120-030
211
22301
02
120-080
301
08
515N
118-0.)
302
03
573
120-030
302
02
602
120-080
210
09
513
118-010
313
04
574
120-030
302
03
665
125-012
210
10
524
118-02)
302
05
572
120-030
302
22401
665
125-012
301
11
515P
118-0-0
302
20801
582
120-05)
302
11
60F
120-080
301
2
521P
118-020
313
02
581
120-050
302
02
602
120-080
301
13
522
118-020
302
03
589
120-06)
302
03
665
125-012
210
20114
521N
118-020
313
"
583
120-050
302
22501
600
120-080
301
15
523
118-020
302
04
585
120-050
302
02
601
120-080
301
16
523
118-020
313
05
584
120-050
211
03
602
120-080
301
20201
527
118-030
211
06
585
120-050
211
04
661N
125-011
301
02
526
118-030
302
07
586
120-050
211
05
661P
125-011
300
03
528
118-030
211
20901
618N
121-020
201
06
661N
125-011
300
ou
528
118-030
302
02
618N
121-020
201
07
663N
125-011
300
05
531
118-030
211
03
N8T9
121-020
201
08
663
125-011
300
06
530
118-030
302
04
618N
121-020
201
09
663P
125-011
300
07
529
118-030
302
05
618N
121=020
121
10
664
125-011
300
08
532
118-030
302
21001
687
125-031
200
11
665
125-012
210
09
532
118-030
211
02
688P
125-031
200
12
664
125-011
300
20301
611
121-020
211
03
639
125-031
200
22601
669
125-012
210
02
611
121-020
201
04
686N
125-031
200
03
615
121-020
201
05
688N
125-031
200
04
612
121-020
201
21101
690F
125-032
210
05
613
121-020
201
02
690P
125-032
200
20401
617
121-020
201
03
690N
125-032
200
02
611
121-020
201
04
691
125-032
200
03
616
121-020
201
05
093
125=032
200
04
614P
121=020
201
06
692
125-032
200
05
615
121-020
201
21201
586
120-050
210
06
614N
121-020
201
02
682
125-023
210
07
618N
121-020
201
03
682
125-023
210
08
618P
121-020
201
21301
682
125-023
210
09
613
121-020
201
02
682
125-023
210
10
618N
121-020
121
03
682
125-023
200
11
618P
121-020
121
04
683
125-023
200
20501
551
119-030
211
05
684
125-023
200
02
548
119-030
211
06
684
125-023
200
000030
NARA Reference Copy
Cross Index
000018
Traffic Zone - Census Tracts
Baltimore, Anne Arundel, Howard County
1961
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Cens
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zonc
Sub
Dist
Trac:
Zone
Zone
Zone
Zone
23001
13R
213-012
170
24403
34
201-04c
271
27004
7
401-070
02
2
213-012
170
04
35
201-040
271
27101
6P
401-065
03
1
213-012
171
05
36
201-040
271
02
6R
401-066
04
4
213-012
171
06
37
201-040
271
03
6N
401-004
05
3
213-012
170
07
38
213-030
271
27201
6F
401-065
06
13P
213-012
170
24501
39
213-030
280
02
5T
401-058
07
4
213-012
171
02
38
213-030
280
03
5S
401-057
08
4
213-012
171
03
39
213-037
270
04
10
401-100
23101
5
213-011
291
04
4071
213-030
270
05
5R
401-056
02
6
213-011
291
05
38
213-030
280
06
5P
401-055
03
7
213-011
291
2500]
403
201-073
371
07
6N
401-064
23201
8
213-013
290
02
409
201-073
271
27301
10
401-100
02
9
213-013
290
03
201-052
270
C2
10
401-100
03
10
213-013
290
04
403
213-033
270
03
10
04
11
213-013
290
05
440
201-082
270
04
10
401-100
05
12
213-013
290
06
38
213-030
270
05
.10
401-100
06
13N
213-013
250
07
41.1
201-082
371
27401
10
401-100
23301
19
213 021
272
08
406
201-073
372
02
9N
401-094
02
18
213-021
281
25101
55
201
081
370
27501
10
401-100
03
19
213-021
281
02
56
201-082
371
02
9P
401-095
23401
19
213-021
272
03
57
201-082
371
03
6N
401-064
23501
17
213-022
272
04
58
201-082
371
27601
10
401-100
02
14
213-022
280
05
59
201-073
372
02
9.°
401-095
03
16
213-022
271
06
410
201-060
372
03
6N
401-064
04
16
213-022
281
07
43
201-072
372
04
6P
401-065
05
15
213-022
280
25201
441'
201-081
370
05
10
401-100
06
14
213-022
281
02
44P
201-081
371
06
10
401-100
07
13N
213-013
280
03
445
201-081
270
07
5P
401-055
08
13N
213-013
290
04
44R
201-081
370
27701
10
401-100
24001
26
213-051
272
05
44s
201-081
02
10
40.1-100
02
25
213-051
272
06
445
201-081
370
03
10
401-300
03
23
213-051
272
26001
760
353-764
04
10
401-100
04
21
213-051
272
02
76P
353-765
05
10
401-100
05
20
213-051
272
03
795
353-796
06
10
401-100
27707
06
27
213-051
272
26101
769
353-767
28001
80N
354-804
24101
43
201-072
373
26101
73
353-730
02
80P
354-805
02
42
201-072
373
02
73
353-730
03
80R
354-806
03
42
201-072
272
03
72
353-720
04
80s
354-807
24201
60
201-071
372
04
713
353-715
05
81N
354-814
02
61
201-071
372
05
7711
353-744
06
81R
354-816
03
62
201-071.
373
06
72
353-720
07
81P
354-815
04
63
201.-071,
373
07
71N
353-714
28101
91A
345-911
24301
33
203-052
271
08
79M
353-794
"
91B
345-912
02
31
203-052
271
09
798
353-796
02
91A
345-911
03
32
203-052
271
10
79P
353-795
28201
90
344-900
04
30
203-052
272
26201
68N
354-684
28301
89
341-890
05
29
203-052
272
02
68N
354-684
02
88
341-880
06
28N
203-052
272
26301
68N
354-684
03
81R
354-816
It
28P
203-052
272
26401
66
354-660
28401
88
341-880
07
41P
201-060
272
26402
68N
354-684
02
81R
354-816
08
30
203-052
271
27001
8P
401-085
03
81N
354-814
24401
41N
201-060
271
02
8R
101-086
28501
97N
341-974
244C2
40R
201-073
971
03
8P
101-085
02
87s
341-877
NARA Reference Copy
000031
Cross Index
000019
8
Traffic Zone - Census Tracts
Baltimore, Anne Arundel, Howard County
lo
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
161
1945
Swd
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
28503
87P
341-875
*29001
23
406
230
04
87R
341-876
04
87P
341-875
05
87N
341-874
28603
88
341-880
01
90
344-900
01
91A
341-911
ROW281
02
91A
341-911
282
29002
23
406-230
03
23
406-230
04
23
406-230
05
22
406-220
06
23
406-230
07
22
406-220
C8
23
406-230
29101
20
406-200
29201
22
406-220
-
23
406-230
02
22
406-220
03
22
406-220
04
22
406-220
22
406-220
29
22
406-220
501
02
22
406-220
03
22
406-220
04
4N
402-044
05
3U
402-039
29401
18
405-180
02
18
405-180
29501
13
402-130
11
11P
402-115
02
11P
402-115
29601
24
406-240
02
24
406-240
03
25
406-250
04
26
406-260
05
24
406-240
06
25
406-250
07
24
406-240
08
21
406-210
09
23
406-230
29701
25
406-250
02
24
406-240
03
23
406-230
04
26
406-260
000032
NARA Reference Copy
600020
Cross Index
9
Traffic Zone - Census Tracts
Baltimore City
1961
shull
1945
1961
knum
Census
2945
1961
on-un
Census
1945
Sun
Dist
Tract
Zone
Sun
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
30001
497
117-010
400
30410
544N
119-020
302
31007
580P
120-040
302
02
495
117-010
400
11
543
19-020
302
31101
569P
120-020
302
03
496
117-010
400
12
537
119-010
313
02
568P
120-020
302
04
241
111
30
400
13
539
119-010
313
03
570N
120-020
302
05
494
117-010
400
30501
535
119-010
313
04
559N
120-020
302
06
493
117-010
400
02
533
119-010
313
05
568N
120-020
302
07
492
117-010
400
03
534
119-010
313
06
567P
120-020
313
30
506
117-020
400
04
536
119-010
313
07
567P
120-020
302
02
505
117-020
400
05
537
119-010
313
08
570P
120-020
302
03
504
117-020
400
06
539
119-010
313
09
571
120-020
302
04
498
117-020
400
07
538
119-010
313
10
5671
120-020
312
05
499
117-020
400
30601
452
116-020
313
11
567N
120-020
312
06
503
117-020
400
02
451
116--020
313
12
472P
116-060
312
07
500
117-020
400
03
448
116-020
313
13
475
116-060
312
08
502
117-020
400
04
449
116-020
313
31201
472P
116-060
312
09
501
117-020
400
05
450
116-020
313
02
472N
1.16-060
312
30201
511N
117-030
400
06
447
116-020
313
03
473
116-060
312
02
510P
117-030
400
07
444
116-020
313
04
471P
116-060
312
03
510N
117-030
400
08
444
116-020
401
05
471N
110-060
312
04
509P
117-030
400
09
445
116-020
313
06
474
116-060
312
05
509N
117-030
400
10
446
116-020
313
07
566
120-020
312
06
511P
117-030
400
30701
457
1.1.6-030
31.3
31301
567P
120-020
313
30207
509P
117-030
400
02
458
116-030
313
02
565
120-020
313
08
508P
117-030
400
03
456
116-030
313
03
468
116-050
313
09
508N
117-030
400
04
454
116-030
323
04
466
116-050
313
10
502P
117-030
400
05
455
116-030
313
05
565
120-020
312
11
507
117-030
400
06
453
116-030
313
06
468
116-050
312
30301
512P
118-010
313
30801
561
120-010
323
07
467
116-050
312
02
513
118-010
313
02
558
120-010
313
08
466
116-050
312
03
512N
118-010
323
03
403
116-040
313
09
466
116-050
312
04
442
116-010
313
04
462
116-040
313
10
566
120-020
312
05
441
116-010
313
05
459
116-040
313
11
470
116-050
312
06
440
116-010
313
06
560
120-010
313
12
469
116-050
312
07
439
116-010
313
07
558
120-010
313
31401
374
115-030
323
08
438
116-010
313
08
464
116-040
313
02
375
115-030
322
09
437
116-010
313
09
461
116-040
313
03
371
115-030
322
10
437
116-010
401
10
460
116-040
313
04
374
115-030
312
11
521P
118-020
313
11
559
120-010
313
05
374
115-030
322
12
519
118-020
313
12
465
116-040
313
32406
372
115-030
322
13
521N
118-020
313
30901
564
120-010
302
07
373
115-030
322
14
519
118-020
313
02
563
120-010
302
31501
477
116-070
312
15
520
118-020
313
03
562
120-010
302
02
476
116-070
312
16
443
116-010
313
04
561
120-010
302
03
385
115-060
321
30401
542N
119-020
302
05
561
120-010
313
04
386
115-060
321
02
541P
119-020
302
06
560
120-010
315
05
387
115-060
321
03
540N
119-020
302
07
599
J10
313
06
388
115-060
321
04
535
119-010
313
31001.
577
120-040
302
07
389N
115-060
321
05
542P
119-020
302
02
578P
120-040
302
08
390N
115-060
321
06
544P
119-020
302
03
578N
120-040
302
09
389P
115-060
321
07
540P
119-020
302
04
579N
120-040
302
10
480
116-070
321
08
536
119-010
313
05
579P
120-040
302
11
481
116-070
312
09
545
119-020
302
06
5c0N
120-040
302
12
479
116-070
312
NARA Reference Copy
000033
606021
10
Cross Index
Traffic Zone a Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census
1945
1961.
Enum
Censta
1945
Sub
Dist
Tract
"one
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
31513
482
116-070
312
32104
488
116-080
311
33106
418
115-110
430
14
481
116=070
312
05
487
116-080
311
07
417
115-1.10
430
15
482
116-070
322
06
483
116-080
311
08
416
115-110
430
16
478
116-070
312
07
484
11.6-080
311
09
415
115-110
431
31601
385
115-060
321
08
485
116-080
311
33201
413
115-110
331
02
394
115-072
332
09
486
116-080
311
02
411
115-100
331
03
384
115-060
321
10
491
116-080
311
03
421
115-100
430
04
394
115-072
321
32201
600
120-080
301
04
410
115-100
431
05
395N
115-072
332
02
599
120-070
301
05
408
115-100
431
31606
388
115-060
321
03
596
120-070
30].
06
967N
128-012
431
07
395P
115-072
321
04
598
120-070
301
07
967N
128-012
432
08
395P
115-072
332
05
598
120-070
311
33208
967P
128-012
431
09
389N
115-060
321
06
597
120-070
311
09
409
115-100
431
10
39UN
115-060
321
07
592
120-070
311
10
410
115-100
331
11
390F
115-060
321
08
593
120-070
311
11
412
115-100
331
12
396.-
115-072
321
09
594
120-070
311
12
974
128-012
331
13
396N
115-072
332
10
595
120-070
311
33301
414
115-100
331
14
396P
115-072
332
11
595
120-070
311
02
980
128-020
331
31701
407
115-090
320
18
995
128-040
301
03
975
128-020
331
02
390P
115-060
320
13
601
120-080
301
33401
403P
115-090
331
03
39UP
115-060
321
32301
995
128-040
301
02
403p
115-090
330
o4
396P
115-072
321
02
995
128-040
300
03
406
115-090
330
05
396P
115-072
332
03
99
128-040
300
04
406
115-090
331
06
402N
115-082
321
04
993
128-040
320
05
405P
115-090
331
07
402N
115-082
332
05
993
128-040
310
06
405N
115-090
331
08
402N
115-082
321
06
993
128-040
311
07
404N
115-090
331
09
402N
115-082
331
32401
986
228-040
310
08
404P
115-090
331
10
402P
115-082
321
02
985
128-040
310
09
981N
128-030
331
11
403N
115-082
321
03
984
128-040
310
10
981P
128-030
331
12
402P
115-082
332
04
984
128-040
310
11
981P
128-030
330
31801
301
115-071
332
32501
987
128-040
310
12
982N
128-030
330
02
391
115-071
332
02
989
128-040
310
13
981N
128-030
330
03
393
115-071
332
03
987
128-040
310
14
982P
128-030
330
OL
391
115-071
332
04
988
128-040
310
33501
407
115-090
321
05
392
115-071
332
32601
996
128-040
300
02
403P
115-090
327,
31901
392
115-071
332
02
992
128-040
300
03
403P
115-090
331
02
401
115-081
332
03
990
128-040
300
04
407
115-090
320
03
400
115-081
331
04
990
128-040
300
05
982N
128-030
320
OL
399
115-081
331
05
991
128-040
300
33601
982P
128-030
320
05
399
115-081
332
06
991
128-040
310
02
982P
128-030
320
06
398
115-081
332
07
992
128-040
310
03
983
128-030
320
07
397
115-081
332
08
989
128-040
310
04
983
128-030
310
08
401
115-081
331
33002
419
115-110
32
05
983
128-030
320
32001
587
120-060
311
02
421N
115-110
332
06
982P
128-030
320
02
587
120=060
311
03
422N
115-110
332
33701
980
128-020
330
03
597
120=060
311
04
420
115-110
332
02
978
128-020
330
04
587
120-060
311
05
420
115-110
430
03
979
128-020
330
05
588
120-060
301
06
419
115-110
430
04
976
128-020
330
06
588
120-060
301
33101
422N
115-110
332
05
977
128-020
330
07
588
120-060
301
02
421P
115-110
332
06
978
128-020
330
32101
483
116-080
311
03
422P
115-110
332
33801
974
128-012
331
02
489
116-080
311
04
416
115-110
332
02
973
128-012
331
03
490
110-080
311
05
419
115-110
4:0
03
974
128-012
NARA Reference Copy
000034
000022
Cross Index
11
Traffic Zone - Census fracts
Baltimore City
1961
Enum
census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist
tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
33804
973
128-012
330
05
973
128-012
431
06
967P
128-012
431
07
967N
28-012
432
08
972
128-012
330
09
968N
128-012
330
10
968N
128-012
431
11
971
128-012
330
12
970
128-012
330
13
968P
128-012
330
14
968P
128-012
432
15
908P 128-012
432
16
968P 128-012
432
33901
968P 128-012
432
02
S969
128-012
432
#
968P
128-012
432
03
963
128-011
432
000035
NARA Reference Copy
600003
12
Cross Index
Traffic Zone - Census Tracts
Baltimore and Howard County
1961
Enum
Census
1945
1961
Ernum
Census
1945
1961
Enum
Censu
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
34001.
56
201-092
372
35303
109
203-161
470
37006
98N
202-142
391
02
65
201-092
373
04
114
203-162
470
37101
94
202-141
391
03
64
201-092
373
05
93
202-141
391
02
97
202-141
390
04
65
201-092
372
06
92
202-141
391.
03
97
202-141
391
34101
73
201-102
380
35401
92
202-141
391
37201
96
202-141
02
72
201-091
372
02
94
202-141
391
02
95
202-141
390
03
71
201-091
373
03
93
202-141
391
03
104T
202-141
471
04
70
201-091
373
04
97
202-141
350
04
95
202-141
391
05
69
201.091
373
35501
112
203-162
393
37301
99R
202-141
06
68
201-091
372
02
III
203-162
393
02
99P
202-141
07
73
201-102
371
03
43
203-162
470
03
99N
202-14
08
72
201-091
380
04
114
203-162
470
37401
104S
202-152
09
71
201-09J
381
05
112
203-162
470
02
104R
202-152
10
71
201-091
372
06
11
203-J62
470
03
101P
202-152
34201
82
201-113
381
36001
67
201-092
372
04
100P
202-152
02
8L
201-113
381
36101
74
201-101
374
05
101N
202-152
03
80
201-113
381
02
73
201-102
371
37501
202-131
04
79
201-113
381
03
74
201-102
380
02
104P
202-151
05
79
201-113
380
36201
54
201-103
371
03
104R
202-152
06
79
201-113
380
02
53
201-103
371
37601
102N
202-151
01
343
76
201-111
380
03
52
201-103
370
01
LOOR
202-151
76
201-111
380
36301
74
201-102
371
02
104F
202-151
02
77
201-111
380
02
51
201-10
371
03
104N
202-151
03
76
201-111
380
03
50
201-101
380
37701
102P
202-151
04
78
201-111
381
04
50
201-101
370
02
998
202-151
05
83N
201-111
381
04
51
201-101
370
03
100N
202-151
05
83P
201-111
381
36401
76
201-111
380
04
102R
202-151
06
78
201-111
380
02
83
201-111
381
05
100R
202-151
34401
83P
201-11]
381
03
75
201-111
380
37801
102S
202-151
34501
83N
201-111
381
36501
83T
201-121
381
02
102S
202-151.
02
82
201-113
381
02
838
201-111
381
03
102S
202-151
34601
83R
201-111
381
36601
1021
202-151
38001
202-132
02
83P
201-111
381
02
845
201-121
02
202-132
35001
91
202-142
392
03
84R
201-121
38101
102R
202-151
02
88
202-142
393
36701
84R
201-121
02
102K
202-151
03
98N
202-142
391
02
845
201-121
38201
103N
202-132
04
so
202-142
392
03
84:
201-121
38301
103₽
202-131
05
89
202-142
392
04
84N
201-121
02
103P
202-131
06
89
202-142
392
36801
47P
201-121
38401
202-131
07
91
202-142
392
02
74R
201-121
38501
103N
202-132
08
83R
201-111
381
03
46
201-121
02
103N
202-132
08
838
201-111
381
04
47N
201-121
03
103N
202-132
08
83T
201-121
381
05
45R
201-121
04
103N
202-132
35101
85
201-112
393
06
49
201-121
39001.
2
402-020
02
87
201-112
393
36901
45N
201-122
02
4R
402-046
03
86
201-112
393
02
45P
201-122
03
4s
402-047
35;
107
203-171
471
03
48
201-122
04
5N
402-054
U2
108
203-171
471
37001
98P
202-142
391
05
4T
402-048
03
106
203-171
471
02
1025
202-151
39101
4R
402-046
04
104T
202-141
471
03
98R
202-142
391
02
2
402-020
35301
95
202-141
391
04
1205
202-151
03
1
402-010
02
710
203-161
391
05
83T
201-121
381
04
3R
402-036
000036
NARA Reference Copy
000024
Cross Index
13
Traffic Zone - Census Tracts
Baltimore and Howard County
1961
Emuu
Census
1945
1961
Enum
Census
1945
1961
Enum:
Censt:
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
39.105
3P
402-035
06
3N
402-034
39201
11N
402-114
02
11N
402.114
39301
11N
402-114
02
11N
402-114
39401
4P
402-045
02
3U
402-039
03
411
402-04"
04
4TJ
402-049
39501
IlP
402-115
02
ILP
402-115
03
38
402-037
04
1JP
402-115
05
3'/
402-038
06
3U
402-039
39601
IIN
402-114
02
11N
402-114
03
11N
402-114
39701
IN
402-114
02
11N
402-114
02
12
403-120
03
11N
402-114
04
11N
402-114
04
11N
40?-114
04
12
403-120
39801
11N
402-114
01
12
402-120
000037
NARA Reference Copy
E
Cross Tyjer
Traffic Zone - Census Tracts
Baltimore City
961
ED.UU
Census
1945
1961
Eram
Census
1945
1961
Exima
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zome
Zone
Zone
ACCOL
239
111-030
050
40510
328
114-010
410
40814
355N
115-020
410
02
239
111-030
050
11
329
114-010
470
40901
368
115-020
313
03
239
111-030
050
40602
297P
113-020
411
02
369
115-020
313
04
240
111-030
050
02
2.96P
113-020
411
03
370P
115-020
313
05
240
111-030
050
03
294P
113-020
471
04
370N
115-020
322
06
240
111-030
050
04
294N
113-020
471
05
363
115-020
322
07
240
111-030
050
05
293P
113-020
411
05
367
115-020
313
40101
237P
111-020
500
C6
293N
113-020
411
07
366
115-020
313
02
238N
111-020
500
07
289
113-010
510
08
366
115-020
322
03
237N
111-020
500
08
289
113-010
520
09
364
115-020
322
04
236P
111-020
500
09
289
11.3-010
420
10
365
11.5-02.0
322
05
236N
111-020
500
10
289
113-010
411
41001
303P
113-030
411
06
234
111-020
500
11
295N
113-020
411
02
302N
013-030
411
07
239
111-030
400
12
295P
113-020
411
03
302P
113-030
411
03
240
111-030
400
13
296N
113-020
411
04
303N
113-030
411
40201
234
111-020
501
14
290
113-010
420
05
301N
113-030
411
02
236N
111-020
501
15
291N
113-010
420
06
300
113-030
411
03
235
111-020
501
16
291P
113-010
420
07
298
113-030
420
04
233
111-020
17
292N
113-010
420
08
501
299
113-030
420
05
234
N1-020
501
18
292P
113-010
420
09
301N
113-030
420
8
234
19
297N
113-020
411
-10
301P
113-030
420
111-020
510
07
233
111-020
510
40701
351
114-030
401
41101
381P
115-040
411
08
233
111-020
501
02
352
114-030
401
02
381P
115-040
420
40301
248
111-040
400
03
354
114-030
401
03
380P
775-040
322
02
242
111-040
400
04
353
114-030
401
04
381P
115-040
322
03
247
111-040
400
05
354
114-030
410
05
381N
115-040
322
04
243
111-040
400
06
353
114-030
410
06
3BON
115-040
322
05
246P
111-040
400
07
349P
174-030
410
07
376
115-040
322
06
246N
111-040
400
08
350
114-030
401
08
376
115-040
421
07
245
111-040
400
09
347P
114-030
401
09
376
115-040
322
08
244
112-040
400
10
348R
114-030
401
10
377
115-040
322
40401
344
114-020
401
11
348P
114-030
410
11
379P
115-040
322
02
343
114-020
401
12
349N
114-030
410
12
379N
115-040
322
03
336
114-020
401
13
346
114-030
410
13
378
115-040
322
04
345
114-020
401
14
348N
114-030
410
14
376
115-040
332
05
342
114-020
401
15
347P
114-030
410
15
382P
115-050
33
06
337
114-020
401
16
347N
114-030
410
16
382P
115-050
332
07
341
114-020
402
40801
362
115-010
401
41201
328P
115-050
332
08
340
114-020
401
02
361P
1.15-010
401
02
383P
115-050
332
09
339
114-020
401
03
357P
1.15-010
401
03
383N
115-050
332
PT
338
114-020
401
04
361N
115-010
1313
04
383P
115-050
332
40501
333
114-010
510
05
360P
115-010
313
41301
306
113-040
421
02
332
114-010
510
06
360N
115-010
313
C2
307
113-040
421
03
333
114-010
410
07
358
115-010
313
03
305
113-040
421
04
332
114-010
410
08
358
115-010
401
04
304
113-040
421
05
334
114-010
410
09
357N
115-010
401
41401
304
113-040
421
06
331
114-010
410
10
356N
115-010
410
02
325
113-080
450
07
334
114-010
401
11
359
119-010
313
03
325
113-080
521
08
335
114-010
401
12
356P
115-010
313
04
325
113-080
520
09
330
114-010
401
13
355P
115-010
322
05
323
113-080
521
NARA Reference Copy
Cross Index
Traffic Zones - Consus Tracts
décoss
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Jub
Dist
fract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
41501
382P
115-050
421
42104
435
115
130
440
42405
963
127 011
432
02
382N
115-050
421
05
431
115
130
440
06
959
127 200
432
03
382N
115.050
430
06
927
127
160
450
07
959
127 200
442
41601
427N
115-120
440
07
938
127
160
451
08
958
127 200
432
02
427P
115-120
430
08
923
127
160
451
42501
929
127
170
451
03
428
115-120
430
09
923
127
160
441
02
921N
127
150
452
04
426
115.120
440
10
924
137
160
441
03
920P
127
150
452
05
429N
115-120
430
1.1
927
127
160
441
04
921N
127
150
442
06
424
115-120
440
12
927
127
160
440
05
920P
127
150
442
07
42SP
115-120
440
42201
432
115
130
431
06
948
127
190
442
08
429P
115
120
430
02
966
128
011-
431
07
947
127
190
442
41701
325
113
080
520
03
946
127
180
431
08
947
127
190
452
02
325
113
080
520
04
945N
127
180
441
09
947
127
190
442
03
327
113
080
520
as
943P
127
1:0
441
10
949
127
190
442
04
326
113
080
520
06
943
121
180
431
42601
S964
128 011
432
05
323
113
080
520
07
943
127
180
441
01
&963
128 011
432
06
323
113
080
521
08
942
127
180
431
02
958
127 200
432
07
322
113-080
521
09
941
127
180
441
03
958
127 200
442
41801
309
113
050
520
10
939
127
180
431
04
957
127 200
432
02
308
113
050
520
11
940
127
180
431
05
957
127 200
442
03
314
113
060
520
12
940
127
180
441
06
956
127 200
432
04
313P
113
060
520
13
936
127
180
441
07
956
127 200
442
05
313N
113
060
520
14
935
127
180
431
08
955
127 200
432
06
3121
113
060
520
15
937
127
180
431
09
955
127 200
442
07
311P
113
060
520
16
965
128
011
431
42701
962
127
200
442
08
311N
113
060
520
17
963
128
011
432
02
961
127 200
442
09
310P
113
060
520
18
951
J27
190
432
03
960
127 200
442
10
312N
113 060
520
19
950
327
190
442
04
953
127 200
442
11
310N
113 060
520
20
949
127
190
442
05
954
127 200
442
41901
320
113
070
530
21
944
127
180
431
42801
953
127 200
442
02
320
113
070
520
22
966
128
011
431
02
954
127 200
442
03
320
113
070
521
23
944
127
180
441
42901
962
127 200
442
04
318
113
070
521
42301
935
127
170
451
02
962
127 200
452
05
319
113
070
520
02
934
127
170
451
03
952
127 200
452
06
318
113 070
520
03
929
127
170
451
04
960
127
200
442
07
317
113
070
521
04
929
127
170
451
05
952
127 200
452
08
317
113 070
520
05
929
127
170
451
06
952
127 200
442
09
316
113 070
521
05
929
127
170
441
07
953
127 200
442
42001
434
115
130
440
07
929
127
170
441
43001
425
115 120
440
02
434
115
130
430
08
934
127
170
441
02
427N
115
120
440
03
433
115
130
430
09
932
127
170
442
03
426
115 120
440
04
431
115
130
440
10
933
127
170
441
04
425
115 120
450
05
431
115
130
441
11
931
127
170
441
05
424
115
120
440
06
431
115
130
431
12
929
127
170
441
06
424
115
120
440
07
432
115
130
431
13
929
127
170
441
07
424
115
120
450
08
966
128
011
431
14
929
127
170
441
08
423
115 120
440
09
925
127
160
431
15
930
127
170
441
09
423
115 120
450
10
926
127
160
431
16
949
127
190
442
43101
324
113 080
450
11
926
127
160
441
17
948
127
190
442
02
324
113 080
450
12
924
127
160
441
42401
963
128
011
432
03
922N
127
150
450
42101
436
115
130
450
02
951
127
190
432
43201
321
113 080
521
02
426
115
130
440
03
950
127
190
442
02
922P
127 150
521
0:-
430
115
130
450
04
949
127
190
442
03
922N
127 150
521
NARA Reference Copy
000039
Cross Index
16
Traffic Zones
Census Tract
Baltimore City & County
261
Enum
Census
1945
1961
Enum
Census
1945
1961
Env
asus
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
43301
315
113 070
521
44103
122
203
181
481
46103
124T
203
199
02
320
113
070
521
04
120
203
181
481
04
126P
203
192
03
916
127
140
521
44201
115
203 172 470
05
12)
203 192
04
917P
127
140
521
02
116
203
172
471
06
126N
203
192
05
914N
127
140
521
03
117
203
172
471
07
127N
203 192
06
315
113 070
521
04
118
203
172
471
08
124S
203 192
43401
922N
127
150
522
04
119
203
172
471
46201
204 201
02
921P
127 150
451
05
118
203
172
471
02
204 210
03
921N
127
150
451
06
123N
203 191
03
204 230
04
922N
127
150
451
07
119
203
172
480
03
204 210
05
922N
127
150
450
08
124N
203 191
04
204 202
06
324
113 080
450
09
124N
203
191
46301
204 202
43501
922N
127
150
522
45001
129
203 182
480
02
204 201
02
922N
127
150
522
02
128R
203
182
480
46401
204 230
03
914N
127
140
522
03
128R
203
182
570
47001
208 240
04 914P
127
140
522
04
128P
203
182
570
02
127T
203 192
05
917N
127
140
522
05
128N
203
182
571
03
127S
203 192
06
915
127 140
522
06
128P
203
182
481
04
127T
203 192
07
913
127 140
522
07
128N
203
182
481
05
127T
203 192
08
911P
127
140
522
08
129
203
182
481
47101
208 271
09
914P
127
140
522
45101
130
209 291
571
02
208 271
43601 922N 127 150
522
02
130
209 292
570
48001
204 221
02
911N
127
130
522
45201
135
209
292
570
02
204 221
03
910
127 130
522
02
135
209
292
580
03
204 201
04
910
127 130
523
45301
127R
203 192
571
04
204 201
05
S912
127 130
523
02
127R
203
192
481
48101
204 222
06
911N
127
130
523
03
127R
203
192
02
204 221
43701
921N
127
150
451
04
127S
203 192
48201
204 230
02
921N
127
150
523
05
131
209 291
571
02
204 230
03
921N
127
150
452
06
131
209 291
48301
204 230
04
921N
127
150
523
45401
130
209 291
571
02
204 230
05
920P
127 150
452
02
135
209 292
581
03
204 230
06
920N
127 150
452
03
134
209 292
581
48401
204 221
07
919N
127
150
452
04
133P
209 292
582
02
204 221
08 919N 127 150
523
05
131
209
291
571
03
204 221
09 918N 127 150
523
06
131
209 291
48501
204 230
10 918N 127 150
523
07
132
208 271
02
204 230
11 918P 127 150
523
08
133P
202 292
03
204 230
12
918N
127 150
523
09
133N
208
272
04
204 230
13
918P
127
150
452
46001
203 191
05
204 230
14
919P
127 150
452
02
123R
203
191
49001
208 240
43801
921N
127
150
523
03
123P
203
191
02
208 240
02
918N
127 150
523
04
123N
203
191
03
208 240
43901
909
127 130
523
05
123N
203
191
04
205 680
02
909
127 130
523
06
124N
203
191
44001, 127P
203 192
481
07
124P
203
191
02 127N 203 192
08
124P
203 191
03
125
203 192
46101
203 192
44101
120
203 181
480
02
126R
203 192
02
121
203
181
480
000040
NARA TOTOO
Cross Index
Traffic Zones - Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
50001
232P
111-010
500
50506
205
109-090
600
51004
259
112-030
540
02
227P
111-010
500
07
203
109-090
610
05
261
112-030
540
03
231
111.010
500
08
202
109-090
610
06
260
112-030
530
04
232N
111-010
500
09
204
109-090
610
07
261
112-030
530
50101
227N
110-020
600
50601
276
112-050
510
08
264
112-030
511
02
227N
110-020
600
02
277N
112-050
510
51101
253
112-020
530
03
8229
110-030
600
03
288P
112-070
510
02
253
112-020
530
04
S228
110-030
600
04
288P
112-070
511
03
258
112-020
530
05
225P
110-020
600
05
288N
112-070
511
51104
256
112-020
530
06
226
110-020
600
06
288N
112-070
520
05
257
112-020
530
07
225N
110-020
600
07
282
112-060
510
06
257
112-020
540
08
224
110-020
600
08
282
112-060
531
07
256
112-020
540
09
223
110-02C
600
09
287P
112-070
511
08
255
112-020
540
10
220
110-020
600
10
286N
112-070
511
09
254
112-020
530
11
222
110-020
600
11
287N
112-070
511
10
253
112-020
530
12
221
110-020
600
12
281
112-060
511
1.1.
252
112-020
530
13
219
100-020
600
13
287N
112-070
530
12
252
112-020
540
50201
231
111-010
500
14
281
112-060
530
51201
181P
109-040
540
02
231
111-010
500
15
280
112-060
530
02
181P
109-040
550
03
230
111-010
501
16
278
112-060
530
03
182N
109-050
550
04
230
111-010
501
17
284
112-070
530
04
182N
109-050
550
50301
218
110-010
600
18
286N
112-070
520
05
182N
109-050
550
02
216P
110-010
600
19
288P
122-070
520
06
182N
109-050
550
03
216R
110-010
600
20
285
112-070
520
07
183
109-050
550
04
216P
110-010
600
21
283
112-070
530
08
183
109-050
550
05
217
110-01C
600
22
283
112-070
520
09
180N
109-040
550
06
215P
110-010
600
23
S279
112-060
530
10
181P
109-040
540
07
216N
110-010
600
24
286P
112-070
511
11
180P
109-040
540
08
213
110-010
600
50701'
269
112-040
510
12
180N
109-040
540
09
214
110-010
600
02
268
112-040
510
13
184
109-050
540
10
215N
110-010
600
03
268
112-040
511
14
181
109-040
540
11
212
110-010
600
04
265
112-040
511
51301
193P
109-070
620
12
211
110-010
600
05
266
112-040
511
02
191P
109-070
620
13
210
110-010
600
06
267
112-040
510
03
191N
109-070
620
50401
277N
112-050
510
07
270
112-040
510
04
190P
109-070
620
02
277N
112-050
501
50801
201
109-080
510
05
190N
109-070
620
03
276
112-050
501
02
197
109-080
510
06
182P
109-070
550
04
276
112-050
510
03
197
109-080
511
07
192
109-070
550
05
275
112-050
510
04
196
109-030
511
08
193N
109-070
550
06
275
112-050
501
05
195
109-080
511
09.
193P
109-070
550
07
274
112-050
510
50901.
200
109-080
510
51401
189
109-060
620
08
271
112-050
510
02
199
109-080
610
02
188P
109-060
620
09
272
112-050
510
03
194
109-080
610
03
188N
109-060
620
10
272
112-050
501
04
195
109-080
610
04
187P
109-060
620
11
273 N
112-050
501
05
198
109-080
610
05
187N
109-060
620
12
273P
112-050
501
06
198
109-080
510
06
186
109-060
620
50501
200
109-080
501
07
198
109-080
511
07
185
109-060
620
02
209
109-090
501
08
195
109-080
511
51501
175N
109-030
550
03
208
109-090
600
51001
263
112-030
511
02
175P
109-030
550
04
207
109-090
600
02
262
112-030
511
03
176N
109-030
550
05
206
109-090
600
03
262
112-030
540
04
176N
109-030
540
05
176P.
109-030
540
NARA Reference Copy
000041
18
Cross Index
Traffic Zones - Census Tracts
Baltimore City
1961
Emum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
51506
177N
109-030
540
52206
899
127-110
531
52809
904
127-180
531
07
177P
109-030
540
07
899
127-110
531
52901-
869
127-082
542
os
178N
109-030
540
08
899
127-110
531
01
&870
127-082
542
09
179P
109-030
540
09
899
127-110
531
02
868
127-082
542
10
179W
109-030
540
52301
896
127-100
55%
03
867
127-082
542
11
178P
109-030
540
02
892W
127-100
551
53001
884
127-090
550
12
176N
109-030
550
03
892P
127-100
551
02
885
127-090
550
51601
166
109-010
540
52304
892P
127-L00
541
53003
883
127-090
550
02
167
109-010
540
05
892N
127-100
542
04
883
127-090
550
03
167
109-010
550
06
895
127-100
541
53101.
883
127-090
551
04
168
109-010
550
07
894
127-100
541
02
883
127-090
550
05
163
109-010
550
08
893
127-100
541
53201
812
127-0.
640
06
163
109-010
540
09
891
1.27-100
54%
C2
811N
127-0
640
07
164
109-010
540
10
890N
127.100
541
03
811P
127-0'0
640
08
165
109-010
540
11
890P
1.27-100
541-
04
169
109-0.
640
09
898P
127-100
540
52401
887
127-090
551
53301
881
127-090
551
10
897P
327-100
540
02
888
127-090
551
02
881
127-090
SSI
11
897N
127-100
540
03
889
127-090
551.
03
876
127-090
551
12
897N
127-100
SSC
52501
908
127-120
54%
04
877
127-090
551
13
896
127-100
550
02
905
127-120
541
05
878
127-090
551
14
896
127-100
540
03
905
127-120
541
06
879
127-090
551
3.5
893N
127-100
540
04
906
127-120
547.
07
880
127-090
551
51701
S1.72
109-020
550
05
90
127-720
542
08
881
127-090
551
02
171
109-020
550
06
906
127-120
542
6
882
127-090
551
51801
174
109-020
550
07
905
127-120
53L
53401.
818
127-030
641
02
174
109-020
550
08
908
L27-120
531
02
812
127-0
641
03
173
109-020
550
09
904
127-120
537.
03
811N
127-030
64
04
174
109-020
550
10
904
127-120
531
04
817P
127-030
6
05
171
109-020
550
11
904
127-120
532
05
817N
127-030
64.
Oo
169
109-020
550
12
904
127-120
531
06
816
127-030
641
51901
169
109-020
621
13
904
127-120
531
07
844P
127-030
641
02
169
109-020
621
5260L
873
127-082
541
08
818
127-030
641
03
159-
109-020
621
02
872
127-082
54L.
5355L
866
127-081
551
04
159
109-020
621
03
875
127-082
54%
02
866
127-081
551
05
S170
109-020
550
04
87
127-082
541
03
853
127-081
551
06
169
109-020
550
05
871
127-082
543
04
853
127-081
551
52001
251
112-010
540
06
875
127-082
54?
05
854
127-081
551
02
251
112-010
540
07
869
127-082
542
06
854
127-081
551
03
901
127-110
540
08
870
127-082
542
07
863
127-081
551
04
899
127-110
540
52701
864
127-081
551
53601
843
127-060
642
05
901
127-11.0
530
02
865
127-08L
551
02
844N
127-060
642
06
251
112-010
530
03
862
127-081
551
03
845
127-060
642
07
251
112-010
530
04
860
127-081
551
04
846
127-060
642
08
899
127-110
530
05
859
127-081
551
05
846
127-060
643
52101
886
127-090
550
06
858
127-081
551
06
852
127-070
643
02
885
127-090
550
52801
907
127-120
542
07
852
127-070
644
03
884
12/17/2090
550
02
902
127-120
542
08
851P
127-070
644
04
171
109-020
550
03
9C3
127-120
542
09
851N
127-070
644
52201
899
127-110
541
04
904
127-120
531
10
849
127-070
644
02
900
127-110
541
05
903
127-120
531
11
840
127-060
543
03
899
127-110
541
06
904
127-120
531
12
841
127-050
543
04
8908
127-110
541
07
904
127-120
531
13
843
127-060
643
05
127-110
531
Cd
904
127-120
531
14
842
127-060
643
NARA Refere Coll Copy
0000
42
Cross Index
000000
Traffic Zones - Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone-
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zones
Zone
Zone
53615
849
127-070
644
53701
857
127-081
551
02
861
127-08:
551
03
856
127-081
552
04
855
127-081
551
53801 854
127-081
551
02
854
127-081
551
03
853
127-08.1
55L
53901
849
127-070
644
02
849
127-070
644
03
848
127-070
644
04
848
127-070
645
05
847
127-070
645
06
850
127-070
645
07
847.
127-070
644
08
850
127-070
644
09
851 N
127-070
644
0080430
NARA Reference Copy
Cross Index
Traffic Zones - Census Tracts
Baltimore County
1961
Entern
Census
1945
1961
Enum Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist Tract
Zone
Sub
Dist
Tract
Zone
zone
Zone
Zone
54001
136
209-301
580
55008
204
209-363
670
56506
189P
208-261
02
137
209-301
580
55101.
204
209-363
670
07
189N
208-261
54101
141
209-302
580
02
203
209-363
670
08
189S
208-201
02
140
209-302
581
55201
220
209-400
672
09
189U
208-261
03
145
209-302
581
02
231
209-412
671
10
208-261
04
140
209-302
580
03
232
214-420
671
56601
208-250
05
144
209-302
580
04
219
209-400
672
02
208-250
8
145
209-302
530
55301
206
209-362
591
03
208-250
07
143
209-302
580
02
205
209-362
671
04
208-250
08
142
209-302
550
03
207
209-352
591
57001
168
209-283
54201
150N
209-341
581
at
209
209-362
591
02
168
209-283
02
152
209-341
581
05
209
209-362
671
03
171
209-283
03
150P
209-341
590
8
208
209-362
591
04
169
209-283
04
147
209-242
580
55401
214
209-361
591
05
170
209-283
05
148
209-242
580
02
213
209-361
591
5710L
172
209-282
06
149
209-242
590
03
212
209-361
591
82
172
209-282
07
151
209-341
5BL
to
211
209-351
591
03
172
209-282
54301
139
209-310
581
05
213
209-361
672
04
1908
209-282
02
137
209-301
SBL
8
211
209-361
672
05
190R
209-282
54401.
163
209-320
582
07
210
209-361
59L
C6
190N
209-282
02
164
209-320
582
C8
210
209-361
671
07
209-282
03
162
209-320
$82
55501
221
209-411
672
08-
173
209-282
04
161
209-320
582
02
222
209-411
672
57201.
214
209-361
05
160
209-320
582
03
222
209-411
671
02
215
209-400
06
139
209-31.0
581
55607
222
209-411
672
03
215
209-400
06
160
209-310
581
02
222
209-411
671
04
215
209-400
07
1.39
209-320
581
03
224
209-411
671
05
216
209-400
07
160
209-320
581
04
223
209-411
671
06
221
209-411
08
146
209-302
681
05
225
209.411
671
5
190
209-400
09
1.38
209-301
581
55701
229
209 412
670
08
2405
209-400
10
137
209-301.
581
02
228
209 412
670
3
240R
209-400
11
134
209-292
581
03
227
209-412
670
57301
216
209-400
12
160
209-320
04
226
209-412
670
02
190P
209-400
54501
156
209-332
581.
56001
133P
209-292
582
03
240R
209-400
02
154
209-332
581
561.01
165
209-283
04
2403
209-400
03
153
209-332
581
02
166
209-283
57401.
217
209.400
672
04
155
209-332
581
03
167
209.283
582
02
218
209-400
672
54601
1.97
209-332
590
04
167
209-283
582
03
219
209-400
672
02
198
209-352
590
56201
1.76
209-281
58001
208-240
03
199
209-352
590
02
175
209-281
02
208-240
54701
157
209-33L
582
03
174
209-281
03
208-240
02
159
209-331-
582
04
174
209-281
58101
210-370
03
158
209-331
582
56301.
1.80
208-272
02
210-370
c4
192
209.351
591
02
179
208-272
03
210-370
05
1.58
209-331
591
03
177
208.272
04
210-370
Oo
191
209-351
591
04
1.78
208-272
58201
210-370
54801
191
209-351
591
05
177
208-272
02
210-370
02
191
209-351
591
56401
183
208-262
03
210-370
03
1.92
209-351
591
02
182
208-262
59001
211-381
04
193
209-351
591
03
181
208-262
02
211-381
05
192
209-351
591
04
184
208-262
03
211-381
05
194
209-351
591
05
181
208-262
04
211-381
07
195
209-351
591
8
186
208-262
59101
211-381
08
196
209-351
591
07
187
208-262
55001
200
209-363
590
08
189T
208-262
2
202
209-363
590
09
185
208-262
03
201
209-363
590
56501
208-261
C4
201
201-363
670
02
208-261
C5
204
209-363
670
03
208-261
06
200
209-363
670
04
189R
208-261
or
203
209-363
670
05
188
208-261
000044 Reference Copy
0000
44
800032
Cross Index
raffic Zones - Census Tracts
Baltimore City
1901
Enum
Census
1945
1961
Enum
Census
1945
1961
snum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
2
60001
65
105-020
710
60802
110P
107-040
600
61203
147
108-050
611
02
65
105-020
700
03 110N
107-040
600
04
147
108-050
610
03
66
105-020
700
ols
110N
107-040
710
05
246
108-050
610
04
64
105-020
710
05 109
107-040
710
06
145
108-050
610
60101
63
105-0.10
700
06
108
107-040
710
61301
1114
108-040
601
02
66
105-020
700
07
107
107-040
710
02
141
108-040
601
03
62P
105-010
700
08
105
107-040
711
03
142
108-040
601
04
6:N
105-010
700
09
105
107-040
601
04
243
108-040
601
05
60P
105-010
700
10
106
107-040
601
61401
140
108-030
601
06
60N
105-010
700
11
107
107-040
601
02
139
108-030
602
07
58
105-010
700
12
109
107-040
601
03
138
108-030
602
08
58
105-010
710
13
112N
107-040
600
04
237P
108-030
602
09
61
105-010
700
6081/1
111P
207-040
600
05
132P
108-030
602
10
59
105-010
710
60901
116P
107-050
710
OÉ
132N
108-030
602
60201
89
106-050
700
02
S128
107-050
710
07
135
108-030
602
02
90
1C6-050
700
11
117N
107-050
710
08
135
108-030
601
03
87N
106-050
700
03
117P
207-050
710
09
137P
108-030
601
04
87P
106-050
700
04
117P
107-050
711
10
137N
108-030
601
05
88
106-050
700
05
113
107-050
711
11
136P
108-030
601
60301
83
106-040
700
06
113
107-050
710
12
136N
108-030
601
02
82
106-040
700
07
114
107-050
710
61501
134
108-330
602
03
81
100-040
701
08
115
107-050
600
02
133P
108-030
602
04
84
108-040
700
09
116N
107-050
710
03
133N
108-030
602
05
85
106-040
700
10
214
207-050
710
04
132N
108-030
602
06
86
106-040
701
61001
162P
108-070
600
05
132P
108-030
602
60401
78
106-030
701
02
161R
108-070
600
61601
129
108-020
611
02
77
106-030
701
03
112P
108-070
600
02
129
108-020
601
03
79
106-030
701
04
1628
108-070
600
03
131
108-020
601
04
80
106-030
701
05
160P
108-070
601
04
126
108-020
601
60501
72
106-020
701
06
160N
108-070
601
05
126
108-020
602
02
71
106-020
701
07
1591
108-070
601
06
126
108-020
611
03
73
106-020
701
08
158P
108-070
601
07
127
208-020
611
04
73
1.06-020
701
09
159N
108-070
601
08
230
108-020
611
05
74
100-020
701
10
157
108-070
601
09
131
108-020
611
06
76
106-020
701
11
158N
108-070
601
61701
120
108-010
620
07
75
106-020
701
61012
161N
108-070
601
02
120
108-010
620
60601
99P
107-020
711
13
161P
108-070
6CO
03
120
108-010
631
02
100N
107-020
711
14
162N
108-070
600
04
120
108-010
631
03
100P
107-020
711
61101
156
108-060
600
61801
125
108-010
631
04
95
107-020
711
02
153
108-060
600
02
124
108-010
631
05
96N
107-020
711
03
152
108-060
610
03
123
108-010
631
06
97
107-020
711
04
250
108-050
610
04
122N
108-010
631
60607
98
107-020
711
05
149
108-050
610
05
122P
108-010
631
08
99N
107-020
711
06
151
108-060
610
If
741
126-030
631
09
96P
107-020
711
07
153
108-060
601
61901
119
108-010
621
60701
104
107-020
711
08
156
108-060
601
02
120
108-010
621
02
101
107-030
711
09
155
108-060
601
03
121
108-010
621
03
98
107-020
711
10
154
108-060
601
61904
122N
108-010
631
04
102
107-030
601
11
151
108-060
611
05
810N
127-010
631
05
102
107-030
711
12
148
108-050
611
06
810R
127-010
631
06
103
107-030
711
61201
127
108-020
611
07
810N
127-010
621
60801
111N
107-040
600
02
128
108-020
611
08
810P
127-010
621
NARA Reference Copy
000045
22
Cross Index
Traffic Zones - Census Tracts
Baltimore City
51
cincum
Jensus
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
6190
8301
27-010
632
62505
825
127-042
651
63017
743
120-030
631
es
8100
127-010
631
06
826N
127-042
643
18
744
126-030
631-
F
SION
127-010
621
07
826P
127-042
643
19
739
126-030
631,
08
BIOP
127-010
621-
08
826P
127-042
602
20
740
126-030
633
09
119
108-010
621
09
826N
127-042
042
21
741
126-030
631
62001
119
106-U10
621
10
827P
127-042
642
#
122P
108-010
637
02
810P
127-010
621
17.
828N
127-042
642
22
75%
126-030
630
03
809
127-010
660
12
825
127-01;2
643
63201
734N
126-020
660
04
808
127-010
660
62601
836
127-050
651
02
734P
126-020
660
05
808
127-010
660
02
336
127-050
651
03
735
126-020
660
06
808
127-010
650
03
836
127-050
663
04
738
126-020
660
07
807
127-010
650
04
835
127-050
663
05
736
126-020
660
62101
814N
127-020
640
05
835
127-050
651
06
733
126-020
660
02
814N
127-020
650
62701
838
127-050
544
07
732
126-020
660
03
813
127-020
640
02
838
127-050
643
6320L
755N
126-04
702
04
813
127-020
650
03
839
127-050
643
63301.
738
126-020
662
05
119
108-0.10
640
04
839
127-050
644
02
738
126-020
661
62201
802P
127-010
661
05
837
127-050
643
03
737
126-020
661.
02
802P
127-010
650
06
836
127-050
643
04
730
126-020
662
03
802N
127-010
650
07
837
127.050
644
05
731
126-020
662
ou
803N
127-010
650
62801.
829
127-050
645
06
732
126-020
661
05
BO3N
127-010
661
02
830
127-050
645
C7
736
126-020
661
06
804
127-010
661
03
831
127-050
645
63401
755N
126-041
702
07
803P
1.27-010
661
04
831
127-050
644
02
755N
126-041
702
08
803P
127-010
650
05
832
127-050
644
03
75SN
126-047
702
09
805
127-010
650
06
833
127-050
644
63501
755N
126-041
702
10
805
127-010
661
07
834
127-050
644
63601
755N
126-041
702
11
806
127-010
661
08
829
127-050
651
63701.
727
126-010
66
62301
814N
127-020
641
09
835
127-050
651
02
728
126-010
662
02
874N
127-020
650
10
835
127-050
663
03
729
126-010
662
03
815N
127-030
650
11
829
127-050
645
04
729
126-010
66
on
815P
127-030
650
12
829
127-050
645
05
726
126-010
66
05
828P
127-030
641
13
829
127-050
645
C6
725
126-010
66:
06
815P
127-030
642
14
829
127-050
645
07
724
126-010
66
07
814P
127-030
641
15
829
127-050
645
08
725
126-010
66
08
815N
127-030
642
16
829
127-050
644
09
724
126-010
663
62401
824
127-041
651
63001
748
126-030
630
10
723
126-010
663
02
824
127-041
662
02
752
126-030
630
11
722
126-010
663
03
822
127-041
662
03
753
1.26-030
630
12
721
126-010
663
ou
820
127-041
663
04
753
126-030
630
63801
729
126-010
662
05
81.9
127-041
663
05
754
126-030
702
63901
723
126-010
663
06
8.19
127-047
651
06
754
7.26-030
630
02
722
126-010
663
07
821
127-047
663
07
754
126-030
630
U3
721
126-010
663
08
821
127.041
651
08
750
126- 030
630
64002
69P
106-010
701
09
822
127-041
652
09
749
126-030
630
62
70
106-010
701
10
823
127-041
651
10
746
126-030
630
03
67N
106-010
701
11
754
126-030
630
04
67P
206-010
701
11
823
127-041
662
12
74's
126-030
630
05
68N
106-010
701
62501
828N
127-042
651
13
745
126-030
630
06
68P
106-010
70].
02
827P
127-042
651
14
74?
126-030
630
07
69N
106-010
701
03
827N
127-042
651
15
741
1.26-030
630
64101
93
107-010
711
04
826P
127-042
651
16
742
126-030
631
02
94
107-010
711
NARA Refere
000046
GOOD
46
000034
Cross Index
Traffic Zones all Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census 1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
64103 91
107-010
711
04 92
107-010
711
64201 794
126-100
701
02 762
126-042
701
03 763
126-042
701
04 793
126-100
701
64301 761
126-042
711
02 761
126-042
701
03 761
126-042
701
04 761
126-042
702
05 761
126-042
711
64401 .761
126-042
602
02 761
126-042
711
64501 761
126-042
702
64601
758M
126-041
702
02
758N
126-041
702
03
760P
126-041
702
04 759P
126-041
702
05 759N
126-041
702
06 755N
126-041
702
07 755N
126-041
702
08 756
126-041
702
09
758P
126-041
702
10
755N
126-041
702
11 757
126-041
702
12
760N
126-041
702
64701
758N
126-041
630
02
758N
126-041
711
03
757
126-041
702
04
755N
126-041
702
64801
761
126-042
702
02
761
126-042
702
64901
755N
126-041
702
000047
VIDEO
NARA Reference Copy
Cross Index
24
Trafflc zones and census Tracts
Baltimore county
1961
Enum
census
1945
1961
Enum
Census
1945
1961.
Enum
census
1.945
Sub
Dist
Tract
zone
Sub
Dist
Tract
zone
Sub
Dist
Tract
zone
zone
zone
zone
001
265
234-433
770
66203
269
214-45
771
67113
249R
211-3
773
02
265
214-453
771
04
268
214-452
771
14
249R
211-3
-B
65101
253
1-3.
60
05
270
2154
771
15
249P
2
392
-B
02
25
--43-
680
06
271
215 460
771
16
2475
211392
-B
03
253
4-431
680
07
271
215 460
770
17
2495
211 392
773
04
254
4-431
680
66301
264
214-451
771
67201
211-382
-B
65201
26
4-45
772
02
263
214-451
772
02
211-382
-B
65201
03
262R
214.451
772
03
211-382
-8
262
214-451
772
215-460
67301
211-382
B
04
274R
772
02
264
214-451
771
02
211-382
-B
66401
275
215-530
-B
03
260
214-440
68001
286
172
215-540
-B
02
276
215.530
B
3
2.4
215-540
6
03
260
214-440
772
03
279
215-530
B
03
28 N
215.540
-B
03
260
214-440
772
04
278
215-530
B
68101
285
215-540
B
65301
258
214-432
681
OS
277
215 530
-B
02
26
215-540
B
02
259
214-432
681
66501
273
215 460
B
68201
287
215-561
B
03
26
- 14 440
68.1
02
274N
215-520
-B
02
2875
215-561
-B
04
257
-14-432
681
03 280
2 5 520
B
3
29
215 561
B
65401
680
04
251
214-420
231
2.5.520
B
68301
2 5 561
02
252
214-420
680
05
282
215 520
-8
02
IN
215.561
65501
00
283
215 520
-8
02
.881
232
214 420
671
215 561
07
273
215 460
-B
02
208400
672
03
287N
215-561.
235
66601.
2490
214440
-8
250
214 420
68L
04
287T
215.561.
03
02
261N
214440
-B
05
2875
215 561
04
233
214-420
671
03
274T
215-561
-B
06.
287P
215-561
05
251
214.420
681
04
274
215 561
-B
68401
291N
215-561
06
234
214-420
671
66701
261
214 440
440
02
290P
215-561
B
65601
236
217-391
672
68501
248N
211 392
02
274
21.5
c
8
02
238
211391
672
02
288,
213 561
03
274
2.
520
-B
03
23
214 420
672
03
288R
215-56'
04
274
215 460
772
04
288N
04
215.561
23
21.1.391
682
05
26
214
77
05
250
214-420
26
04
N
211.39'
682
06
2.4
.0
772
0'
BS
215 561
250
214-420
681
07
26 N
40
772
05
288N
215 56L
65701
26.1
214-440
B
08
261P
24.440
772
05
288R
215-561
02
260
214-440
773
09
274P
2
460
-B
06
288N
215-561
03
262
214 440
772
67001
237
2
391
672
07
23TT
215-561
04
260
214-440
772
02
238
1
391
672
08-
04
26.
214-440
772
03
238
582
215 561
2.1 391.
6
01.
215 561
05
260
214 440
681
04
239
21391
-
8
(2
5 561
06
26.
214-440
681
05
240
2:1 391
8
=3
N
2 561
07
260
214-440
772
06
240
2 1 391
8
68701
T
211 392
08
249
214.440
773
07
242
2 1-391
8
02
2485
211 392
8
249
214.440
773
08
242
2 1 391
03
248R
211-392
10
260
214-440
772
09
248N
21391
-B
04
21.1-392
1"
260
214-440
773
10
2425
2.1.391
682
68801
211.392
1
11 /
240N
21391
02
248F
261
214-440
772
B
211 392
1,
249
214-440
773
12
243N
21391
-B
03
248R
211-392
04
246R
211-392
6600
271
215-460
890
13
242R
2.1-391
-B
04
246P
211-392
215 460
67101
245P
2 1 - 392
-B
O2
272
770
04
246P
245P
02
211 392
211-392
B
03
272
215-460
771
03
246R
211-392
B
05
24BN
211-392
04
273
215-460
771
04
246N
211392
-B
06
2480
211-392
66101
21%
215-460
770
05
245R
21-392
-B
07
247P
211-392
02
272
215 460
770
06
243P
2.1.392
-B
08
2475
211 392
03
271
215-460
771
07
2465
21392
-B
09
248P
211-392
04
272
215-460
CS
771
244
2:1-392
773
10
249N
211-392
244
215.460
09
2 1 392
-B
05
273
771
11.
247N
211-392
66201
266
10
214-452
247R
2 1.392
-Б
770
68901
211 392
02
267
67117
247P
21392
-B
214 452
771
12
247N
1-392
-B
NARA Refei
000048
MAA048
Cross Index
0,000.00
Traffic Zones - Census Tracts
Baltimore City
1961
Enum
Census
1945
1961
Enum
Census
1945
1961
Enum
Census
1945
Sub
Dist.
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
70001
49
103020
820
13
20P
101040
810
03
6
101010
800
02
46N
103020
820
71001
13
101020
820
03
778
126061
800
03
45N
103020
830
02
12
101020
820
04
6
101010
800
04
47
103020
830
71003
11
101020
820
04
778
126061
800
05
45N
103020
700
04
10
101020
831
05
6
101010
810
C6
46P
103020
700
05
8
101020
701
06
6
101010
810
07
48
103020
700
06
9
101020
701
07
778
126061
810
08
48
103020
830
07
9
101020
831
08
778
126061
810
70101
49
103020
820
08
12
101020
830
09
778
126061
811
70201
43
103010
820
71101
2P
101010
820
72101
778
126051
810
02
42N
103010
820
02
3N
101010
820
02
778
126051
810
03
34N
102020
820
03
3P
101010
820
03
778
126061
811
04
32
102020
830
04
3P
101010
810
73001
768
126050
811
05
31
102020
830
05
4N
101010
810
02
768
126050
821
06
30
102020
700
8
4P
101010
810
03
764N
126050
821
07
34P
102020
830
07
5P
101010
810
04
764P
126050
821
08
33
102020
830
08
5N
101010
810
05
765N
126050
821
09
42N
103010
830
09
5N
101010
820
06
765P
126050
821
10
42P
103010
830
10
2N
10101C
820
07
766N
126050
821
11
43
103010
830
11
1
101010
820
08
767
126050
821
12
41
103010
830
71201
796P
126100
831
09
766P
126050
821
13
40
10301.0
700
02
786P
126030
831
10
768
126050
821
7021.4
44
103010
830
03
784N
126080
831
11
768
126050
811
70301
38
102030
820
04
784N
126080
701
12
770
126050
821
02
37,
102030
820
05
784P
126080
831
13
769
126050
821
03
36
102030
820
71206
785P
125080
831
73101
801
126120
821
04
35
102030
820
07
786N
126080
831
02
764N
126050
821
70401
39
102030
820
08
785N
126080
831
74001
S780
126062
801
70501
28P
102010
820
09
794
126100
701
02
779N
126061
801
02
29N
102010
820
10
795
126100
831
03
779N
126061
800
03
29P
102010
820
11
796N
126100
831
04
779N
126061
800
04
25
101050
820
71301
791
126090
810
05
779N
126061
800
05
24
101050
830
02
791
126090
821
74101
779N
126061
800
06
22
101050
830
03
789
126090
821
74201
779R
126062
801
07
22
101050
701
04
787
126090
821
74301
779R
126062
801
08
25
101050
830
05
788
126090
820
02
779R
126052
801
09
23
101050
830
06
788
126090
821
74401
S780
126062
801
10
23
101050
701
07
790
126090
821
74501
778
126061
811
11
29P
102010
830
08
790
126090
820
74601
776
126061
811
12
27N
102010
830
09
799
126110
810
02
775
126061
811
13
26N
102010
830
10
800
126110
810
03
774
126061
811
14
26P
102010
830
11
799
126110
820
04
772
126061
811
15
26N
102010
701
12
798
126110
820
74701
771
126061
801
70516
28P
102010
830
13
797
126110
820
02
771
126061
811
17
27P
102010
830
71401
783
126070
810
03
771
126061
811
18
28N
10201C
830
02
783
126070
810
74801
778
126061
811
19
28N
102010
830
03
768
126050
811
02
777
126061
20
26N
102010
700
71404
770
126050
821
03
775
126061
811
70601
14
101030
830
05
769
126050
821
04
774
126061
8.17
70701
20N
101040
820
8
801
126120
821
05
773
126061
811
02
20N
101040
810
764N
126050
821
8
772
126061
811
03
20N
101040
81.0
07
764N
126050
831
04
19N
101040
820
08
782
126070
821
05
19P
101040
820
09
783
126070
821
06
15
101030
820
10
781
126070
821
07
16
101030
820
11
781
126070
831
08
17
101030
820
12
782
126070
831
09
20N
101040
820
72001
779P
126061
800
10
14
101030
820
01
779N
126061
800
11
18
101030
820
02
6
101010
800
12
21
101040
820
02
778
126061
800
000049
NARA Reference Copy
26
Cross Index
Traffic Zones - Census Tracts
Baltimore County
1961
Enum
Census
1945
1961
Emum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
Zone
75001
380
212-672
870
76001
352
212-63L
880
77201
416
215-603
02
378
212-672
870
02
353
212-631
880
02
417
215-603
03
379
212-672
870
03
354
212-631
880
03
418
215-603
75101
361
212-642
870
04
356
212-631
880
04
416
215-603
02
362
212-642
870
05
356
212-631
880
77301
419S
215-602
03
363
212-642
870
06
355
212-631
880
77401
420
215-590
04
374
212-650
870
76101
343
215-601
690
77501
420
215-590
75201
367
212-641
870
76101
344
215-601
890
02
421
215-590
C2
368
212-541
870
76102
345
212-621
890
03
422
215-590
03
366
212-64L
870
03
346
212-621
890
77601
426
215-581
04
365
212-641
870
04
347
212-621
890
02
428
215-581
05
369
212-641
870
76201
348
212-6252
890
03
427
215-581
06
370
212-641
870
02
341
212-602
890
77701
425
215-582
07
364
212-641
870
03
349
212-6222 890
02
423
215-582
08
371
212-641
870
04
350
212-6222 890
03
424
215-582
75301
360
212-632
880
05
351
212-6282890
77301
430
215-570
02
359
212-632
880
06
348
212-6262 890
77802
432P
215-570
03
358
212-632
880
76301
343
215-601
890
03
429
215-570
04
358
212-632
880
C2
344
215-601
890
04
432
215-570
05
357
212-632
680
76401
342
215-601
891
05
4328
215-570
75401
37+
212-650
870
76501
341
215-602
890
06.
431
215-570
02
373
212-650
870
76601
341
215-602
891
07
432N
215-570
03
372
212-650
870
Oz:
340R
215-602
891
77901
4198
215-602
04
375
212-650
870
03
340P
2:15-602
891
78001
328
215-471
g
376
212-650
670
04
340P
215-602
02
324
215-471
CE
377
212-650
870
76701
340
215-602-
891
03
325
215-471
07
377
212-650
870
02
351
212-622
891
04
326
215-471
75501
388
212-660
871
03
413
212-611
891
05
327
215-471
02
389
212-660
871
04
4L
212-61
880
05
273
215-460
03
389
212-660
871
05
41.0
212-611
880
06
215-471
04
387
212-660
871
06
410
212-611
880
78101
330
215-481
75601
386
212-671
870
07
411
212-611
880
02
329
215-481
02
385
212-671
870
08
356
212-631
880
03
331
215-481
03
384
212-671
870
76801
409
212-612
881
04
332
215-481
04
383
212-671
870
02
407
212-612
881
05
337
215-482
05
382
212-671
870
03
405
212-612
881
06
338
215-482
06
381
212-671
870
04
404
212-612
881
07
334
215-482
75701
391
212-614
881
05
408
212-612
881
08
336
215-482
02
393
212-614
881
06
407
212-612
881
78109
339N
215-482
.03
392
212-614
881
07
407
212-612
881
10
335
215-482
04
394
212-614
881
08
406
212-612
881
1.1
333
215-482
05
390
212-614
881
09
415
212-612
891
78201
322
215-472
05
401
212-613
881
09
340N
215-602
891
02
321
215-472
06
395
212-614
881
09
340P
215-602
891
03
321
215-472
07
396
212-613
881
10
405
212-612
881
78301
301N
215-511
75801
401
212-613
881
77001
340P
215-602
02
301P
215-511
02
396
212-613
881
77001
34CN
215-602
78401
300P
215-511
03
403
212-613
881
02
419N
215-602
02
300N
215-511
04
402
212-613
881
03
419P
215-602
03
299
215-511
05
397
212-613
881
77101
419P
215-602
04
300R
215-511
06
398
212-613
881
02
419R
215-602
05
301N
215-511
07
399
212-613
881
02
426
215-581
05
301P
215-511
02-613
881
77201
340N
215-602
07
305
400
215-511
202-
Cross Index
100038
Traffic Zones - Census Tracts
Baltimore County
1961
Exum
Census
1945
1961
Enum
Census
1945
Sub
Dist
Tract
Zone
Sub
Dist
Tract
Zone
Zone
Zone
78501
339R
215-513
79605
294N
215-562
02
339P
215-513
05
293
215-562
03
304P
215-512
04
301R
215-152
78601
301R
215-512
02
302N
215 512
03
304N
215-512
04
303N
215-512
05
302R
215-512
06
303R
215-512
07
303P
215-512
79001.
320
215-491
02
318
215-491
03
317
215-491
04
316
215-492
05
315
215-492
06
3.14
215-492
07
319
215-491
79101
292
215-562
0?
2916
215-562
03
2908
215-562
04
290T
215-562
05
291P
215-562
06
293
215-562
07
291R
215-562
08
290P
215-562
09
290N
215-562
79201
307
215-500
02
310
215-500
03
306
215-500
04
305
215-500
05
311
215-551
79206
312
215-551
79207
313
215-552
79207
296
215-552
08
308
215-500
09
309
215-500
79301
291P
215-562
02
291R
215-562
03
290S
215-562
04
291R
215-562
05
290P
215-562
06,
290N
215-562
79401
296
215-552
02
295
225-552
03
294R
215-552
79501
296
215-552
02
297
215-552
03
298
215-552
04
295
215-552
79601
294R
215-552
02
291P
215-562
03
294P
215-562
04
000051
929
215-562
NARA Reference Copy
HOME INTERVIEW
Sampling
ffice Procedure
Instructions
Week-End, Holiday & Vaction Trip Instructions
Vehicle Description & Week-End Trip
Out-of-Area Weekday Trip Instruction
000052
NARA Reference Copy
Wilbur Smith and Associates
HI-12-1
020040
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
PROCEDURE FOR HOME INTERVIEW SAMPLING
The best known method of determining travel patterns for
persons living in an urban area is to interview each person at his
place of :residence. As this would be a very time consuming task,
a statistical sample of the population is determined by selecting
a number of dwelling units. Past studies have shown that the occu-
pants of a properly selected dwelling unit sample will have travel
patterns representative of all persons residing in the survey area.
Before the dwelling unit sample could be selected it was
necessary to first determine the best basic records which were
available for the Baltimore project. All-sources of information,
such as Sanborn maps, city directories, census block tracts,
electric meter lists, etc. were investigated and it was determined
that the most up-to-date and accurate records were the electric
meter listings.
These records have been used as the basis for selection of
the dwelling unit sample interviewed on this project. The following
steps have been used in proceeding the sample selection:
1. Obtaining Electric Meter Cards
The Baltimore Gas and Electric Company was contacted in
regard to obtaining electric meter lists for all meters in the
survey area. A meeting was held with the head of the billing
department, Mr. G. Montague, and his assistant, Mr. W. Maurath. A
procedure was established for obtaining the required meter list.
It was agreed that the Gas and Electric Company would print the
name and address of each individual meter listing on a blank IBM
card. These cards will also be grouped into meter routes and
maps will be supplied showing the location of said routes. The
maps delineated meter routes in Baltimore City and adjacent areas
but maps are not available for the far outlying areas.
2. Numbering Meter Cards
As soon as the first group of meter cards was received we
proceeded to hand stamp numbers (beginning with 000, 001) on each
card. This method was found to be too time-consuming, due to
the fact that the cards had to be in consecutive order, and thus
only one person could perform this operation. The Service Bureau
Corporation was contacted and a contract was entered into whereby
the meter cards were stamped automatically by machine.
3. Separating Meter Cards
The next procedure was to separate dwelling unit meter
cards from the various other cards, such as hotels, motels,
trailer parks, commercial, etc. This separation was accomplished
by assigning an entire individual meter route to an individual
employee whose responsibility was to separate the cards as des-
cribed above.
000053
NARA Reference Copy
000041
4. Selecting Dwelling Unit Samples
After the dwelling unit cards had been separated from all
other cards the actual sample was picked by separating every
20th meter card (a 5% sample) from each meter route. In the
sparsely populated areas a 10% sample was selected. Each meter
route was assigned to an individual employee for sampling and
each route was started with a count carry over of ten. The
addresses on these cards were the locations to be called upon
and interviewed by our interviewers.
5. Numbering Dwelling Unit Sample Cards
Immediately after the sample cards were selected each card
was numbered by hand stamping beginning with the number 0001.
Each meter route was stamped as an individual unit beginning with
the number 0001.
6. Selecting Samples by Seasons
The procedure for separating the samples into seasons
(4 seasons) consisted of dividing the selected samples in each
meter route into four equal groups by picking the first, fifth,
etc. card for the first season; the second, sixth, etc. card for
the second season and so on for the four seasons.
7. Addressing Introductory Letters and Home Interview Forms
After all samples had been selocted by seasons the next
operation was to address the envelopes for the introductory
letters and to address the Dwolling Unit Interview Forms, Intro-
ductory letters, malled to the interviewce approximately one week
prior to the interview, are for the purpose of describing the
project and requesting the cooperation of the occupants of the
household. The addresses were obtained from the selected
meter cards and in the majority of cases the saluation used
was "Citizen". Occassionally some addresses appeared to be of a
vague nature therefore in these instances the name of the resident
was written on the ervelope. After the envelopes were addressed,
the introductory letter was inserted and the envelopes were separated
into meter routes.
000054
NARA Reference Copy
Wilbur Smith and Associates
080042
H1-12-1
PROCEDURE FOR COMMERCIAL SAMPLING
The commercial group is composed of churches, clubs and
commercial establishments, Such establishments in many cases have
dwellings located in their structures although the structures are
used primarily for commercial purposes such as grocery stores,
beauty parlors, auto repair shops and others. These establishments
present a difficult problem in selecting samples.
Some experimentation has been undertaken with the meter
listings to establish a method to be used to sample dwelling units
associated with commercial outlets.
Three methods of determining the sample have been tried and
are discussed below.
The first procedure involves telephoning all commercial
listings and then listing every 20th dwelling unit identified
for interview. This method is extremely time consuming and dies
not give significantly different results than the third procedure.
The second procedure is the least reliable, since only five
percent of the meter listings are called. However, a method of
this sort is recommended in the "Manual of Procedures for Home
Interview Survey" for situations where other methods cannot be
utilized. The Manual method calls for listing each structure and
taking the required sample directly from this list. The inter-
viewer then visits the listed sample and interviews all residents
in the structure. If no dwelling units are found, the interview
is handled as a vacancy. This method generally leaves the decision
up to the inter ewer and has a tendency to erroneously increase
the expansion factor.
The third procedure is similar to one used in another trans-
portation study and has a distinct advantage over the second pro-
cedure in that twice as many commercial structures are contacted,
increasing the accuracy of this technique. After 10 percent of
the establishments are called every second structure containing a
dwelling unit is selected for interview. This method takes one-
tenth of the time required for the first procedure and shows a
considerable increase in accuracy over the second procedure. It
may be seen that the establishment of a precise method looses some
significance when consideration is given to the fact that the dwell-
ing units in commercial structures represent less than one percent
of the total number to be interviewed and probably less than one-
tenth of one percent of the total trips in the survey area,
In view of the fact that the third procedure was in close
agreement with the first or detailed procedure and has been used
with confidence in other studies, the third procedure has been
adopted for use in the Baltimore Metropolitan Area Transportation
Study.
000055
NARA Reference Copy
Wilbur Smith and Associates
000043
H1-12-1
PROCEDURE FOR HOTEL, MOTEL AND APARTMENT SAMPLING
The procedure for determining telephone numbers for the
hotel, motel, apartment group will be the same as that used for
the commercial group.
All establishments in this group will then be contacted
by telephone and then divided into two (2) groups.
Group A - one (1) to forty nine (49) dwolling units.
Group B = fifty (50) or more dwelling units.
Permanent residents will be the only ones considered when
classifying these establishments into groups. A permanent resident
will be considered as a person who pays for lodging by the week
or for a longer period of time.
Every fourth card in Group A will then be selected and
field checked to determine the number, name or identification of
each room at this location. Each room will be listed and overy
fifth listing from this group will be selected as the sample for
interviewing. All units in Group B will be field checked and card
indexed as above and every twontieth card will be selected for
interviewing.
Introductory letters and Dwelling Unit Interview Forms will
then be addressed as described under Item 7.
000056
NARA Reference Copy
HOME INTERVIE OFFICE PROCEDURE
Introduction
Office procedures in the processing of the home interview phase
of the Transportation Study are of major importance in assuring that
the data developed by the study are accurate and typical of the
study area. Office procedures are established to minimize the
amount of handling of interview data required in the office and to
maintain control over the paper work as well as the personnel
engaged in the home interviews. Procedures have been developed
covering filing, assignment of interviews, office and field checking
of interview data, "oall backs", where interviews are refused or not
complete for other reasons and maintenanco of interviews and
interviewers progress records.
1. FILING OF DWELLING UNIT FORMS AND PRE-INTERVIEW LETTERS
After the interview forms and envelopes containing introductory
letters had been addressed, the forms were separated by electric
meter routes and placed in fire proof steel files for future use.
At the beginning of the home interview phase, assignments were
given to our personnel based on electric meter units. As the pro-
ject progressed, it was decided that due to the arrangement of the
meter route system, we would facilitate our program by assigning
field work based or postal zone routes or communities where postal
zone routes did not exist. This system was adopted near the end of
Season "A". The envelopes were first separated into postal zones
and then sorted into approximately four sections in each zone.
Each soction was composed of approximately fifty samples. These
envelopes were then filed upon open shelves by sections of the
postal zone routes. By filing in this manner it was possible,
by visual inspection, to ascertain the approximate progress of the
home interview phase of the project.
2. ASSIGNMENT OF WORK TO BE SAMPLED
After newly employed interviewers had attended school and
became thoroughly indoctrinated in the home interview work through
practice interviews, each interviewer was assigned an area in which
to work. An attempt was made to assign the interviewers in an area
near their homes, but due to the fact that each neighborhood is
soon exhausted of samples, the interviewers must be assigned work in
other areas, often quite a distance from where they reside. Inter-
viewers were also assigned a specific day and time each week to
report to the office. Upon reporting to the office, the office
personnel reviewed the home interviewer's work for the preceeding
week and checked the completed work discussing with the interviewer
any problems which may have arisen. The interviewer was then as:-
signed approximately fifty interview forms for the following week.
At the time of the home interview forms and corresponding pre-inter-
view letters were given to the field personnel, each sample number
was logged out in the log book to that particular person, SO that
control of forms could be maintained (See form H2-861).
000057
NARA Reference Copy
(000/5
(2)
3. OFFICE CHECKING OF COMPLETED HOME INTERVIEW FORMS
All completed work turned in by the field personnel is first
logged in and is then thoroughly checked and double-checked. After
the office checking is completed additional entries are made in the
log book on each interview with reference to interview day, number
of persons in the household, number of trips made by persons at the
dwelling unit, number of auto lriver trips, Saturday and Sunday trips
and whether the interview is complete or incomplete. This infor-
mation is also recorded on Form H2-861. If any inaccuracy appeared
which could not be clarified by our office personnel, this work was
laid aside and upon the next visit of the home interviewer to the
office, the interviewer was questioned in regard to the error,
ommission, etc.
4. FIELD CHECKING OF COMPLETED HOME INTERVIEW FORMS
Ten percent of all field work is checked by our "call-back"
interviewers. This checking is accomplished by selecting completed
home interview forms and immediately calling back on the people who
had just been interviewed by our field personnel. A small por-
centage of checkback work had been done by telephone.
5. CALLS BACKS ON REFUSALS AND "NC-CONTACTS"
A special group of personnel has been assigned to make call
backs on refusal and "no-contact" calls. This group has been
selected on the basis of personality, appearance and aggres-
siveness due to the fact that this type of work (particularily
on refusals) requires that the person to be interviewed must be
"sold" on the importance of the study.
6. RECORDS OF FIELD PERSONNEL
A personal record is kept on each home interview. (See form
H4-861). This record encompasses 10 items which by inspection
determines the progress and ability of our field personnel. A
quality control record is also kept on call-backs. (See form
HTI-1061). This record encompasses seven items. A weekly progress
report is also kept by the home interviewer and is transmitted to
the office every Monday morning. This form shows the amount of
work completed during the preceeding week, the number of hours
worked and number of miles traveled by the interview. (See form
A2-Y61).
A record is also kept on total progress of the home interview
phase of the project and is transmitted weekly to the interested
agencies.
By the above described records it is possible at all times to
know exactly the status of our field personnel and progress of the
home interviewing phase of the study.
000058
NARA Reference Copy
Wilbur Smith and Associates
000046
H1-761
HOME INTERVIEW INSTRUCTIONS
PURPOSE OF THE SURVEY
The accelerated growth, of urban areas in the past few years, has
added impetus to the necessity of planning new streets, highways,
and parking facilities. These new and improved facilities should
not only be designed to accommodate the present day requirements,
but should provide for increased transportation needs in the fu-
ture. Proper transportation facts are necessary before a plan of
this magnitude can be formulated. Having acquired these facts,
a relation of the present and future transportation needs can be
evaluated, with the result being a projected estimate of where and
how people wish to travel in the future.
The best known method of determining vehicle travel data of person'
living in an urban area is to interview each person at his place
of residence. As this would he a very time consuming tank, a
statistical sample of the population is determined by sclecting a
number of dwelling units. Past studies have shown that the occu-
pants of the selected dwelling units will have travel patterns
ropresentative of all persons residing in the survey area.
A DWELLING UNIT IS A GROUP OF ROOMS OR A SINGLE ROOM, OCCUPIED OR
INTENDED FOR USE AS SEPARATE LIVING QUARTERS BY A FAMILY OR OTHER
GROUPS OR PERSONS LIVING TOGETHER, OR BY A PERSON LIVING ALONE.
REASONS INTERVIEW CANNOT BE MADE
If an interview cannot be made
at a sample dwolling because of one of the six reasons listed
below, the appropriate reason should be reported under II.
INCOMPLETE INTERVIEW of the Administrative Record Section, and
the form turned in to the supervisor as incomplote.
1. Dwelling Vacant
4. Serious or contagious ill-
ness in household.
2. Dwelling Demolished
5. No one at home after re-
peated attempts.
3. Commercial only
6. Resident refused to answer
questions.
If the interviewer cannot locate the dwelling, do not consider
the interview complete, but return the form to the Supervisor,
who will check to determine why the sample address cannot be
located. The form will then be returned to the interviewer
for completion.
RECORDING THE INTERVIEW DATA The Home Interview form has been
separated into two sections (Front/Dwelling Unit Summary
Back/ Internal Trip Report) to facilitate interviewing and
analyses. The questionnaire section of the DWELLING UNIT SUMMARY
should be completed first since it will serve as a helpful aid in
obtaining the correct trip data for the INTERNAL TRIP REPORT. For
instructional purposes, each question 10 indicated by an alpha-
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betical letter on the interview form for reference in the interview-
ing instructions. The success of this study depends on your obtain-
ing not only the correct information, but you must be certain that
each trip made by persons living at the sample dwelling unit
has been reported. Normally, this assurance depends on your
personal contact with each occupant at the interview address.
A
INTERVIEW ADDRESS
Your interviewing assignment will consist
of a number of dwelling unit addresses for which a complete day's
travel of each occupant, five years of age or older, is to be
obtained. THE INTERVIEW MUST BE MADE AT THIS ADDRESS-SUBSTITU-
TION IS NOT PERMITTED. When the interview form indicates the
name of the occupant and that occupant no longer lives at this
address you are instructed to interview the present occupant. In
multi-dwelling unit structures, the interviewing address will
specify which unit was selected for interview. If and when an
interview address, of a multi-dwelling unit structure, does not
specify & particular unit for interview, do not interview at this
address but record the number of dwelling units in the structure
and report this to your supervisor.
B
TELEPHONE NUMBER The telephone number should be obtained
after the interview is completed; it is to be used primarily by
the office coding section. Interviews are not to be made by
phone; however, it may be feasible to secure incidental trip
data, by phone, which was not available at time of interview.
C
TYPE D.U. STRUCTURE
1.
One Family Unit; 2. Two Family Unit;
3. Three and Four Family Unit; 4. Five or More Family Unit;
5. Hotel-Motel; 6. Rooming House; 7. Trailer; 8. Dormitory-
School; 9. Dormitory Institutional; 10. Other (Specify)
Circle the type building structure at the interview address.
For unusual type structures circle "other" and describe the type
of structure in the notes column. Enter either 1 or 2 to indi-
cate if the dwelling unit is a row house. A row house is one
house in a series of three or more houses (usually of similar
design or appearance) joined together by one wall between each
house. A row house should be so indicated regardless of the
number of families occupying the building today. Enter either
1 or 2 to indicate whether home is rented or owned.
D
DAY AND DATE OF TRAVEL? (YESTERDAY)
Enter the day and date
for which you obtain trip information. The travel day begins
at 4:00 A. M., in the morning and ends the next morning at
4:00 A. M. For example, when interviewing on Friday, you are
to obtain all the trips made during the 24 hour period
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beginning 4:00 P.O M. Thursday morning and ending at 4:00 A. M.
Friday morning. The travel day is defined in this manner
so that it will begin and end at a time when travel is the
lightest. You will interview Tuesday through Saturday thereby
obtaining travel information for Monday through Friday.
E
HOW MANY PERSONS LIVE IN THIS DWELLING UNIT? Enter
the
total
number of persons living in this Dwe'ling Unit, including infants.
Domestic and other employees should be included if they live on
the premises. Members of the family in the hospital, temporarily
away from home on business or for a visit, or for other reasons
(except students away from home) should be included unless
they have established a definite residence elsewhere. Persons
who are living elsewhere while attending school, or while in
the armed services, etc., should not be included. Visitors in
the household on the interview day (yesterday) should not be
included, (Note: The trips made by visitors (yesterday) should
be recorded if their place of residence is outside the survey
area.
)
E-1
HOW MANY ARE FIVE YEARS OF AGE OR OLDER?
Enter the
number of persons five years of age or older, in accordance
with the instruction in paragraph E. Do not include visitors.
E-2
HOW MANY ARE EMPLOYED?
Enter the number of persons at this
dwelling unit who are employed and have worked twenty (20)
hours or more this week, expect to work twenty (20) hours or
more this week, or are on vacation or sick leave.
E-3
HOW MANY PASSENGER CARS ARE OWNED?
Include company and
government owned cars 1f at least one person at this dwelling
unit had use of the car yesterday. Include jeeps or any other
similar vehicle if it is registered as a passenger car. Do not
include junked vehicles, taxis, or trucks.
F
HOW LONG HAS HEAD OF HOUSEHOLD LIVED AT THIS DWELLING UNIT?
Refers to the length of time the head of household has lived
at this particular dwelling unit. If less than one year
"00". If year or more record as 01, 02, 03, etc. The head
of household is usually the husband.
G
HOUSEHOLD INFORMATION
PERSON NUMBER
Each person in the dwelling unit five years of
ago or older is designated by a different person number. Any
person visiting the interview address (yesterday) who lives
outside the survey area should be given a person number of
90, 91, 92, etc. Record these persons occupation as visiters
and denote the city or town in which they live. show complete
address for those visitors who live in the Washington area.
List the head of the household as person No. 1; other person
numbers do not matter. Do not list persons under 5 years of
age.
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TRIPS - YES OR NO?
Check "yes" if the person made any trips
yesterday (travel day) as an auto driver or a passenger in an
automobile, streetcar, public bus, taxi, truck, or school bus.
Check "no" if not.
PERSON IDENTIFICATION
Identify each person at the dwelling
unit, 5 years of age or older, as follows: Husband, Wire,
Daughter, Son, Grandmothor, Visitor, etc. Identify by first
name if there is more than one Son, Daughter, etc,
CHECK IF INTERVIEWED
Check if you interviewed this person
personally, or this person was present at the time of interview.
SEX
Record answer as follows: 1. M (Male) 2. F (Female)
DRIVERS LICENSE THIS QUESTION SHOULD BE ASKED ONLY AFTER OTHER
INFORMATION ON THE INTERVIEW FORM HAS BEEN COMPLETED, OTHERWISE,
a person who does not have a license would not give his auto-
driver trips. Record the answer as follows: 1. Yes; 2. No; or
3. Under age. (Under the legal age of 16 for obtaining a
drivers license in this State).
FIRST MODE OF TRAVEL TO WORK OR SCHOOL (MESTERDAY)
Enter the
first mode of travel to work or school yesterday ( ravel day)
of persons at this dwelling unit who are employed and have worked
twenty (20) hours or more this week 02 expect to work twenty
(20) hours or more this week: AD (Auto-Driver) ; AP (Auto
passenger) ; PB (Public Bus) ; TD (Truck Driver) ; TP (Truck
Passenger) ; TX (Taxi Driver or Passenger) ; C (Cycle-Motorcycle,
etc. ) ; WH (Work at Home) ; W (Walk) For employed persons who
are on vacation or sick leave, enter V (Vacation or sick
leave) ; for persons temporarily out of work, enter U (Un-
employed). A construction worker who drives his car from home
to a construction job would be denoted AD (Auto Driver) where-
as, a plumbing contractor who has his office at his residence
would be denoted WH (Work at Home).
OCCUPATION AND INDUSTRY
Sometimes it may be preferable to defer
this inquiry until the end of the interview; very often, this
information is volunted. ed by the person being interviewed.
The commercial name of the concern is not necessary and should
not appear in this space. The purpose of the occupational
entry is to describe the specific type of work performed. The
purpose of the industrial entry is to specify the industry,
or type of business, in which a person is employed. In making
these entries, be specific; outside salesman-school supplies;
mechanic-auto repair shop; stenographer-law office; inside
salesman-hardware store; etc. An employed person is one who
has worked twenty (20) hours or more this week; expects to
work (20) hours or more this week; or is on vacation or sick
leave. Enter the usual occupation of persons who are tempora-
rily unemployed; enter unemployed for the industry classifi-
cation, In the following special cases, one or two words
will suffice: housewife, retired person, etc. For person
attending school, indicate his occupation as student and re-
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cord his present grade. When interviewing during summer months
record last grade completed.
WORK OR SCHOOL ADDRESS. The street address of where each person
works or attends school should be entered here. The name of a
commonly known company or building is sufficient. The work
address of a construction worker should be the address of his
first work trip yesterday (travel day); either to his home
office or to the construction job.
H
HOW MANY DWELLING UNITS USE THIS ELECTRIC METER
This
question is designed to determine the accuracy of the dwelling
unit sample. In selecting the dwelling unit sample, from
electric meter lists, it was assumed that each electric meter
served a single dwelling unit. Since this assumption is not
always correct, you must record the actual number of dwelling
units using the electric meter at the interview address.
As a further check, record in the "Notos" column of the Ad-
ministration Record actual number of dwelling units at this
dwelling unit structure.
NOTE: AFTER OBTAINING ANSWERS THROUGH QUESTION H, THE INTER-
VIEWER SHOULD NOW PROCEED TO THE BACK SIDE OF THE INTERVIEW
FORM "INTERNAL TRIP REFORT". QUESTIONS I THROUGH N SHOULD
BE COMPLETED IN YOUR AUTOMOBILE FROM INFORMATION OBTAINED
FROM THE INTERNAL TRIP REPORT BEFORE YOU MAKE YOUR NEXT
CALL. THIS WII L PERMIT YOU TO RETURN TO THE DWELLING UNIT
TO OBTAIN ANY OMITTED INFORMATION.
I
TOTAL NUMBER OF TRIPS REPORTED AT THIS DWELLING UNIT? Enter
the total of all trips made by persons 5 years of age or older
living at this dwelling unit during the 2'+ hear travel day
(yesterday). It 1s the total number of trips on the back
side of the form - "Internal Trip Report"; Visitors Trips
Should Be Included, If Their Place of Residence is Outside the
Survey Area.
I-1
NUMBER OF PERSONS 5 YEARS OF AGE OR OLDER MAKING TRIPS?
Enter the number of persons 5 years of age or older at this
dwelling unit who maile trips yesterday (travel day); DO NOT
INCLUDE VISITORS.
I-2
NUMBER OF PERSONS 5 YEARS OF AGE OR OLDER MAKING NO TRIPS?
Enter the number of persons 5 years of age or older at this
dwelling unit who did not make any trips yesterday (travel day) ;
DO NOT INCLUDE VISITORS.
I-3
$ NUMBER OF PERSONS 5 YEARS OF AGE OR OLDER WITH TRIPS UN-
KNOWN?
Enter the number of persons 5 years of age or older
at this dwelling unit who made trips yesterday (travel day),
but ,hose trips are not included on the "Internal Trip Report".
Thi should include persons who refuse to answer; would not
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leave trip information with other members of the household;
etc. This entry will normally be zero. DO NOT INCLUDE VISITORS.
J.
TOTAL NUMBER OF AUTO DRIVER TRIPS REPORTED AT THIS DWELLING
UNIT?
Enter the total number of auto-driver trips made yes-
terday (travel day) by persons living in this dwelling unit;
Visitors' trips should be included if their place of residence
18 outside the survey area.
K.
TOTAL NUMBER OF AUTO PASSENGER TRIPS REPORTED AT THIS DWELLING
UNIT?
Enter the total number of auto passenger trips made
yesterday (travel day) by persons living in this dwelling unit.
INCLUDE VISITORS' TRIPS IF THEIR PLACE OF RESIDENCE IS OUTSIDE
THE SURVEY AREA.
L.
TOTAL NUMBER OF TRANSIT PASSENGER TRIPS REPORTED AT THIS
DWELLING UNIT? Enter the total number of transit passenger
trips made yesterday (travel day) by persons living in this
dwelling unit. INCLUDE VISITORS' TRIPS IF THEIR PLACE OF
RESIDENCE IS OUTSIDE THE SURVEY AREA.
M
TOTAL NUMBER OF TAXI, TRUCK, AND SCHOOL BUS TRIPS REPORTED
AT THIS DWELLING UNIT?
Add all axi, truck, and school bus
passenger trips made yesterday (travel day) by persons living
in this Dwelling Unit and enter the total. INCLUDE VISITORS'
TRIPS IF THEIR PLACE OF RESIDENCE IS OUTSIDE THE SURVEY AREA.
N
STATUS OF DRIVER'S LICENSE
FOR OFFICE CODING ONLY
ADMINISTRATIVE RECORD
I
Interviewer's Record This section is for your personal use
and is a summary of all the calls made at each interview add-
ress. At each interview address, you are to enter the date
and time the call was made. If no one is at home, you are to
contact someone in the neighborhood and determine the reason
no one answered at the interview address. You should also
ask the neighbors for some estimate as to when you could
find the occupants at home. Your necond call should be made
at the time estimated by the neighbor for finding someone
at home. You should make a third call only after some reason-
able assurance that you will find whe occupants at home.
After the third call, contact your supervisor at the prescrib-
ed visiting time at the office.
Your progress is directly related to how well you utilize
your time. A. the beginning of each day, you should pinpoint
the area of the interview and be certain that you contact all
of your interview assignments in this area at this time. Be
careful that you don't find yourself traversing the area of
interview by making unnecessary call-backs.
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Following the instruction period, you will be assigned a
certain time and day to report to your supervisor. At this
meeting, he will iscuss your work and issue you additional
interview !addresses. Your completed interviews will then
be edited by office personnel for possible clerical errors;
these errors will be entered on your record. Following the
editing of these interviews, a random sample of these completed
forms will be assigned to a call-back interviewer who will
check the accuracy at the interview address. The purpose of
this procedure is to make certain that you have obtained the
proper information according to instructions; your interview-
ing approach will also be evaluated. The supervisor will
keep you informed of the results of these re-interviews.
INTERNAL TRIP REPORT
The purpose of this portion of the form is to obtain informa-
tion on all trips made yesterday (travel day) by all persons
living in the Dwelling Unit who are five years of age or older.
The travel day begins at 4:00 A.M. in the morning and ends
the next morning at 4:00 A.M. Trip information at each inter-
view address should be obtained for Monday, Tuesday, Wednesday,
Thursday, or Friday. Travel data will be obtained for all
auto driver trips, as well as all passenger trips made in an
automobile, streetcar, public bus, truck, taxi, and school
buses. Walk trips and trips by motorcycle, bicycle, and horse
drawn vehicles will not be recorded in the "Internal Trip Re-
port", although, any mode of travel for the first work or
school trip will be recorded under
G
Household Information.
One horizontal section on the "Internal Trip Report" should
be used for each trip.
INTERNAL SURVEY - INTERVIEWING
A trip is defined as the one-
way travel from one point to another, for a particular pur-
pose, such as those listed in Column "W" of the Trip Report.
The trip origin is the point where the trip began and the trip
destination is the point where tho trip ended. Thus, a round
trip, to and from work, to and from shopping, etc. represent
at least two trips, in each case. Also a continuous trip,
such as a pleasure drive through the park, should be considered
as two trips. The most distant point reached during the
drive being recorded as the end of the first trip and the
beginning of the second.
STOPS WHICH CONSTITUTE A TRIP
All stops which direct the route
of travel, such as transacting business at a bank, visiting
a friend, eating a meal, shopping at some specific location,
should. be considered the end of one trip and the beginning of
another. In most caser, the person being interviewed will
automatically give the proper location of the end of the trip,
since the trip was made to a specific location. However, it
is the responsibility of the Interviewer to see that the cor-
rect origin and destination of each trip is obtained.
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STOPS WHICH DO NOT CONSTITUTE A TRIP Generally, a stop is
regarded as the end of one trip and the beginning of another.
Exceptions would be when the stops are made for relatively
unimportant purposes which do not determine the route of the
travel. For example, a person enroute to work may stop to
mail a letter, buy cigarettes, etc; these stops will not
be recorded as an origin or destination, in this case, as
they did not direct the route of travel. However, specific
trips made to mail a letter, buy cigarettes, etc. would be
recorded as a trip. Of course, stops made to avoid conflict
with traffic or to comply with directions of traffic officers
or traffic control signals and signs should be disregarded.
RECORDING TRIPS The following example will show the general
scheme used in recording daily travel in terms of one way
trips. A wife drives to work, from work to the grocery store,
then returns home in the automobile. Three trips are involved
and three sections of the "Internal Trip Report" must be
completed.
PERSON
PERSON NUMBER
TRIP NO.
MODE
FROM
TO
Wife
2
1
Auto-Driver Home
Work
Wife
2
2
Auto-Driver Work
Shop
Wife
2
3
Auto-Driver
Conv.
Shop Con Home
CHANGE IN MODE OF TRAVEL
If more than one mode of transporta-
tion is used in traveling from one point to another, each mode
constitutes a separate trip.
CIRCUITOUS TRAVEL
Certain occupations create travel of a
circuitous nature, e.g. a series of travel involving many
short trips, often, only a block or less in length: a door to
door salesman, insurance collector, etc. When recording this
type of circuitous travel, group into one trip the trips
which are made in the same general direction; this grouped
trip should not exceed more than seven blocks in length. The
origin of the first trip and destination of the last trip
will be sufficient to show the route of travel. For example,
an insurance collector drives from his office to his first
call on B Street. He continues to make house to house calls
on B Street by driving his car from block to block for seven
blocks. Following his last call on B Street, the insurance
collector drives to K Street where he makes a series of house
to house calls for five blocks. He then drives back to his
office. For our survey purposes, the salesman has made five
trips: Trip No. 1. From office to first house on B Street;
Trip No. 2. From first house on B Street to last house on
B Street; Trip No. 3. From last house on B Street to first
house on K Street; Trip No. 4. From first house on K Street
to last house on K Street; Trip No. 5. From last house on
K Street to his office. If this insurance collector makes many
calls on the same street and the total travel on this street
exceeds seven blocks, the trips should b) Deparated into seven
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block increments. For example, suppose the collector drives
from his office to B Street and makes calls at 100 B Street,
at 300 B Street, and in each block to 1700 B Street, and
then returns to his office. The salesman has made five trips:
Trip No. 1. From office to 100 B Street, Trip No. 2. From
100 B Street to 700 B Street, Trip No. 3. From 700 B Street
to 1400 B Street, Trip No. 4. From 1400 B Street to 1700 B
Street, and Trip No. 5. From 1700 B Street to his office.
LETTERS NOTE: CORRESPONDING WITH THOSE IN EACH VERTICAL COLUMN
THE FOLLOWING PARAGRAPHS HAVE BEEN PREFIXED WITH
AT THE TOP OF THE INTERNAL TRIP REPORT FORM. WHEN RECORD-
ING THE INTERVIEW DATA, DO NOT WRITE IN THE CODING BLOCKS.
0
OCCUPATION AND INDUSTRY
This is for office coding only.
P
PERSON NUMBER
The person number to be entered in this
column must correspond with the number that has already been
assigned to each member of the household in "G" Household
Information".
Q.
TRIP NUMBER
Each trip made by each person will be numbered
serially in chronological order, beginning with the first
trip of the day made by each person and continuing 2,3,4,
etc. until ail trips made by each person are recorded. How-
ever, the trips do not have to appear on the form in consecu-
tive order as long as each trip is numbered in the order in
which each was made.
B
SEX
Circle the appropriate number in accordance with the
following: 1. Male 2. Female.
S&T
WHERE DID THIS TRIP BEGIN? WHERE DID THIS TRIP END?
These
are the two most important questions on the Home Interview
form. They must be accurate and complete. These origins and
destinations refer to the specific address where the person
began and ended his trip and do not refer to where he parked
his car or to where he boarded a bus (except for change
travel mode trips). The address of the origin and destination
must be sufficiently clear so that the coding section can
pinpoint the trip ends (origin and destination) to specific
blocks. The street name and house number are preferred in resi-
dential areas. The name of commercial, governmental, etc.
establishments and the street on which located are preferred.
The following types of addresses are sufficient:
1. Street name, (Avenue, Street, etc.) house number, and the
City, Community, Subdivision, etc. in which located.
2. Name of a building, store, park, etc., street, and city,
community, subdivision, etc. in which located.
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3. Street name and block number (500 block of Hale Ave. ) odd
numbers, even numbers, south side, etc. and the city,
community, subdivisions, etc. in which located. If you are
unable to determine an address the name of a street alone
is not sufficient. In rural areas, indicate the approxi-
mate addresses by well known landmarks: Chappel Road,
one mile south of Dry Creek; Fisk Road, 1/2 mile west of
Rand Road; etc. DO NOT USE MAIL ROUTE NUMBERS. Only the
City and State need be shown for trips with either the
origins or destinations outside the survey area. Cities
not shown on the attached list of cities, communities,
and subdivisions are outside the survey area. However,
complete addresses must be obtained for trip origins or
destinations in the Greater Washington area, which include
the Virginia counties of Arlington and Fairfax, and the
Maryland counties of Prince George and Montgomery. Trips
made entirely outside the study area, neither trip origin
or destination within the survey area, are not to be
recorded. A trip on a train, airplane, or bus would not
be entered on the "Internal Trip Report". The terminal
would be shown as the trip origin or destination of a
person entering or leaving the city by train, etc.
S&T
LAND USE
This question should be asked in conjunction
with the trip origin and destination, and makes reference to.
exactly how the land is used. Other than for residential
property, a very specific answer is required (see attached
land use code sheet) For example, a man drives from home
(residential) to work (furniture manufacture) ; from work
furniture manufacture) to lunch (restaurant) from lunch
( restaurant) to call on a customer (wholesale furniture deal-
er); from customers office (wholesale furniture dealer) to
play golf (golf course) ; from golf (golf course) to home
(residential)
A land use entry of shopping center or office
building is not sufficient. You must specify what kind of
business is transacted in the particular place the trip began
or ended. Many office buildings (a large insurance office
building) are owned by a large company whose product is
generally associated with the name of the building, whereas,
they may rent office space to organizations not associated
with their particular type of business.
U
MODE OF TRAVEL
For each trip, circle the number designa-
ting the mode. If travel involves more than one mode of
transportation, each mode should be recorded as a separate
trip. For example, a man drives his car from "home" to a
"bus stop" and rides the bus to work. Two trips are made,
one as an "auto driver" and one "transit". Changes from one
public bus to another or from a streetcar to a bus does not
constitute a "change travel mode" trip. Only one trip should
be recorded.
V.
TIME OF STARTING AND ARRIVAL
Enter in the appropriate
section of Column V, the time the trip began and the time
the trip ended. Show hours and minutes, such as 8:10; 4:36,
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etc. under A.M. or P.M. whichever applies. Do not enter
any trip at 12 noon or 12 midnight, instead, show at 11:59
A. M., 12:01 P. M., 11:59 P.M., etc.
W
PURPOSE OF TRIP
Circle the number under "From" and the
number under "To" which explains the primary purpose of each
trip. For example, a person proceeds from "home" to "work",
then to lunch; after returning back to work, he goes shopping
for a suit of clothes, and then to home. Five trips are in-
volved as follows:
PURPOSE OF TRIP
PERSON NO.
TRIP NO.
FROM
TO
1
1
Home
Work
1
2
Work
Personal Bus.
1
3
Personal Bus.
Work
1
4
Work
Shopping Goods
1
5
Shopping Goods
Home
Normally, a person's complete day's travel begins at home
and ends at home; an exception to this would be where a per-
son walks from home to work and makes trips by vehicle during
the day, also, a person may fly into the city on the travel
day and his first trip would start at the airport.
W
PURPOSE OF TRIP EXPLANATIONS
WORK - CODE 1
This applies to trips made to the location of
a person's place of employment, such as factory, shop, or
office and also to locations which must be visited in per-
forming a normal day's work. The major occupation of a per-
son is classified as work even though its is in the nature of
a business. Trips made by a doctor in making his calls, and
by a salesman, calling on prospective customers are classi-
fied as trips to "work". The purpose of "work" would also
apply to electricians, carpenters, plumbers, and others who
are employed on construction projects and have no regular
place of employment. A secretary's trip to the post office
for the company's mail would be a "work" trip, etc.
PERSONAL BUSINESS - CODE 2 Refers to trips to complete personal
business transactions not considered as duties of employment.
Trips to pay a personal bill, deposit a pay check in the
bank, mail a personal letter, eat a meal at home or in a
restaurant, visit & doctor, look at a house for sale or rent,
etc., would be considered "personal business".
RECREATION Day CODE 3
Includes trips for golfing, fishing,
movies, plays, concerts, picnics, pleasure riding, light
refreshments, dancing, etc.
SCHOOL - CODE 4
This refers to students who are actually
attending school, It includes public and private schools,
universities and colleges, night schools, etc. Teachers and
employees at such institutions would be reported as going to
"work".
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SOCIAL - CODE 5 Includes trips to church, lectures, funerals,
attend parties, civic meetings and duties of membership,
visit friends, visit business acquaintances in their home,
etc.
CHANGE TRAVEL MODE - CODE 6 This applies to trips made to
locations where a change of transportation mode occurs. These
modes are auto driver, auto passenger, transit, taxi passen-
ger, truck passenger, and school bus passenger. It is used
as the trip purpose for that part of the trip which is
necessary to reach the location where the change occurs.
Transfers from one streetcar to another or to a bus line
do not constitute a change in "mode of transportation".
When a person is traveling to the airport, interstate bus
or rail terminal to leave the survey area, you shall record
the purpose which designates the reason the trip was made
out of the area, instead of "change travel mode". The airport,
interstate bus, or train terminal however, would still be
entered as the trip destination. For example, suppose a
department store buyer drives an automobile from home to a
suburban bus stop, parks the automobile and, then rides the
bus to his place of employment. He later takes a taxi to the
airport and flys to New York City to purchase clothing for
his employer. Three trips are involved. Trip No. 1. From
"home "to the suburban bus stop as an auto driver to "change
travel mode". Trip No. 2. From "change travel mode" to "work"
as a transit passenger. Trip No. 3. From his place of work
to the airport with a trip purpose from "work" to "work" as
a taxi passenger.
SHOPPING CONVENIENCE - CODE 7
Convenience goods are those
normally found at food and drug stores, filling stations,
bakeries, barber shops, laundry, and other small specialty
shops such as those handling groceries, drugs, flowers, liquor,
ice cream, tobacco, magazinos, etc. Generally, convenience
goods are found in close proximity to each neighborhood,
although, many of the products handled by these stores would
be considered as shopping goods such as: electrical appli-
ances, clothing, automobile tires, furniture, etc.
SHOPPING GOODS - CODE 8.
Shopping goods are those normally
found at department storos, clothing stores, automobile
dealers, furriers, furniture, appliances, lumber products,
etc. Generally, shopping goods are items which require some
degree of selection and comparison.
SERVE PASSENGER - CODE
9
Serve passenger should be recorded
as the purpose of a trip when stops are made in an automo-
bile to pick up or deliver someone to a specific location.
This purpose, for the most part, is used in connection with
auto-driver trips, however, it is also applicable to the
auto-passenger trips in certain instances, as shown by the
following example: a wife drives from "home" to pick up her
husband at "work" and they both start home but with the
husband driving inst ad of the wife. Enroute home the husband
stops at a grocery store to let his wife do some shopping. 000070
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Wilbur Smith and Associates
Page 13
000058
H1-761
Five trips (three for the wife and two for the husband) are
involved. Note: Any time the "serve passenger" Code 9 is
circled, the interviewer will check the code number which
represents the trip purpose of the person who is being
served. An example is shown below.
TRIP MODE OF
PURPOSE
PERSON
NO.
TRAVEL
FROM
TO
Wife
1
1 Auto Driver
O Home
1 Work
(9) Serve Pass.
Wife
2
2 Auto Pass
1 Work
2 Shopp-Conv
(9) Serve Pass
Wife
3
2 Auto Pass
(7) Shopp-Conv
(0) Home
Husband
1
1 Auto Driver
Work
2 Shopp-Conv
9 Serve Pass
Husband
2
1. Auto Driver
Shopp-Conv
9 Serve Pass
(0) Home
HOME 1 CODE 0
Refers specifically to the address of the
Dwelling Unit being interviewed, Trips should never be record-
ed from "home" to "home", as this would indicate a round
trip. If a person leaves home and returns home, it is always
two trips.
X
TOTAL PERSONS IN CAR
The total number of persons in the
car ( (including the driver) should be entered - FOR AUTO
DRIVER TRIPS ONLY.
Y
TYPE PARKING
Circle the number which denotes the type of
parking, as described below: FOR AUTO DRIVER TRIPS ONLY.
CODE 1
STREET FREE steve refers to street parking in both residen-
tial and commercial areas. On streets where meters are
installed "street free" should be indicated during periods
when meters are not in legal operation.
CODE 2.
STREET METER - refers to locations where street meters
are in legal operation. "Street Free" should be denoted when
meters are not in legal operation.
CODE 3
LOT FREE - refers to both private and mercial lots
at which no parking fee is charged.
CODE 4
LOT PAID - refers to commercial lots where a parking
fee is charged.
CODE 5 GARAGE FREE - refers to both private and commercial
parking garages that do not charge a parking fee.
CODE 6
GARAGE PAID - refers to commercial parking garages
where a parking fee is charged.
CODE 7
SERVICE OR REPAIRS - refers to parking at service
stations or repair garages before, during or after service
or repairs are performed to the car and where any charges
are for the service and repair and are not for parking.
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Wilbur Smith and Associates
Page 14
000059
H1-761
CODE 8
RESIDENTIAL PROPERTY - refers to parking in a driveway,
backyard, or any part of residential property. Parking on
the street in residential areas will be coded as "street free".
CODE 9
CRUISED - refers to a person driving an auto around the
block or several blocks while waiting to pick up a passenger.
CODE 0
NOT PARKED - refers to a driver stopping momentarily
to pick up or discharge a passenger when there is no inten-
tion if f parking for a period longer then that required to
accomplish this.
Z.
CAR PARKED WHERE, ADDRESS AND PARKING RATE
This information
should be obtained only for those auto driver trips made to
the Central Business District. The area encompassed by the
Central Business District is shown on the attached map.
CODE 1
HOURLY PARKING RATE are refers to both lots and garages
where auto drivers are charged an hourly parking fee.
CODE 2 DAILY PARKING RATE - refers to both lots and garages
where a daily parking fee is charged for parking.
CODE 3
MONTHLY PARKING RATE - refers to both lots and garages
where a monthly parking fee is charged.
CODE 4.
METER PARKING - refers to both street and off-street
parking where parking meters are installed. When meters
are not in legal operation enter as "free parking".
CODE 5
FREE PARKING - refers to both street and off-strect
parking where no parking fee is charged. Denote "free park-
ing" when car is parked where meters are installed but are
not in legal operation.
ADDRESS OF WHERE CAR IS PARKED
Enter the address showing the
parking location for all auto driver trips to the Central
Business District as shown on the attached map.
Items A and B Column Z are designed to simplify the
answer to this question. If the car is parked at the curb
adjoining the same city block as the trip destination
address, circle A. Same Block. If the car is parked in the
adjacent blook directly across the street from the destina-
tion address, circle B. Across Street. If car is parked
at any other location, enter the Street Address or Name and
location of the parking lot. If only the city block number
is known, designate which side of the street the car was
parked.
For a pictorial description of the use of A. Same Block and
B. Across Street, refer to the attached data description
sheet.
SPECIAL
NOTE ODD TRIPS
You should describe any unusual trips
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000072
Wilbur Smith and Associates
Page 15
000000
H1-761
in this section, i.e., a person driving from "home" to "work"
in the morning, whereas, his second trip begins from "shopping
conv" to "home". You should note that he walked from "work"
to "shopping conv", otherwise, the Home Interviewing Super-
visor would assume that you had omitted his "work" to
"shopping conv" trip.
UPON COMPLETING THE INTERVIEW, YOU SHOULD RETURN TO YOUR AUTOMO-
BILE AND SUMMARIZE THE "INTERNAL TRIP REPORT" DATA IN COLUMNS "I"
THROUGH "M",
NOTES
NARA Reference Copy
000073
Wilbur Smith and Associates
9-61
weekend Holiday Eq. Vacation Trip Instruction
000061
SPECIAL TRIP REPORT INSTRUCTIONS
The special trip report is to be used for recording of the
last weekend trip, holiday trips and the last vacation trip
(anytime during previous year) made by the head of the house-
hold and by each person in the dwelling unit whose last week-
end, holiday or vacation trips differ from those made by the
head of the household.
Weekend
trips
are
those
tr
(
made for any purpose, to or from
anywhere outside the surv
a, which begin in the survey
area and return into the
area sometime during the three
day weekend. A weekend is period of time from 12 noon Fri-
day to 4 A. M. Monday. One way trips made by rosidents of the
area which begin or end in the survey area during this period
will be classed as weekend trips.
Vacation trips are those trips made for the purposes of recreation,
social, personal business, or shopping goods, to and from any-
where outside the survey area which begin in the survey area
and return into the survey area on any day of the week; except
that they may not begin or return during the three day period
of the same weekend or on a holiday. This information should
be recorded for the last vacation trip only.
Holiday trips are those trips made between points outside the
survey area and points inside the area during legal holidays.
A completo holiday trip will have both ends of the trip on
holidays (4:00 A. M. to 4:00 A. M.) Many trips, however, will
begin on weekends and end on holidays; this type of trip should
be recorded by circling the number one (1) and Three (3) in
column nine (9). A trip that begins on a holiday and ends on
a weekday should be recorded by ciroling the number three
(holiday) and two (vacation). A trip beginning on a holiday
and extending through the following wook with the return trip
occuring on the following weekend, would be recorded by circling
the number one (weekend), two (vacation) and three (holiday) in
column nine,
Recording the Data on the Special Trip Report:
The route number and sample number should be copied from
the home interview form number H1-761 and the date the interview
takes place should be recorded either prior to or at the time
of the interview.
COLUMN #1
OCCUPATION AND INDUSTRY
This column is for office
coding.
COLUMN #2. PERSON NUMBER This number should be the same
number used to identify the same person on the Home Inter-
view form H1-761 under G. Household Information.
000074
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000062
COLUMN #3
TRIP NUMBER
Each trip in a series of trips should
be serially numbered, e.g., a vacation trip by the head of
household which involves three trips would be numbered
starting with the number one trip. His weekend trip in-
volves two trips and these would be numbered, again, start-
ing with the number one.
COLUMN #4
Circle figure 1 for male. Circle figure 2 for
female. Ignore figures 3, 4, 5 and 6.
COLUMN #5
WHERE DID THIS TRIP BEGIN? CITY
The name of the
city or nearest city and the state in which the trip.
originated is a sufficient address. When the origins are
inside the survey area the name of the city used in the
Study name is a sufficient address.
COLUMN #6
WHERE DID THIS TRIP END? CITY
The name of the
city or nearest city and the state in which the trip ends
is a sufficient address. A trip will end when stops that
direct the route of travel are made. Stops for gas and
repairs, to eat a meal or to stay overnight are not con-
sidered as directing the route of travel.
COLUMN #7
MODE OF TRAVEL
Circle the number designating
the mode of travel applicable to the trip you are recording.
COLUMN #8
TOTAL PERSONS IN CAR
Circle the number which
includes the driver and all passengers in the car. In the
event the trip is made by one of the other modes, circle
the number of the persons residing in household you are
interviewing who were on this conveyance at the same time.
COLUMN #9
TYPE TRIP
Circle number one 1f this is a last
weekend trip. Circle number two and write vacation on
the dotted line when this applies. Circle three and
write holiday on the dotted line when this applies.
COLUMN #10
DAY TRIP BEGAN-ENDED
Circle under "Began" the
number opposite the day that this trip originated. Circle
under "Ended" the number opposite the day the destination
of this trip was reached.
COLUMN #11
DATE BEGAN
Record the date this trip started.
COLUMN #12
TIME TRIP BEGAN-ENDED
Indicate the starting time
and the arrival time of the trip being recorded.
COLUMN #13
ROUND TRIP DURATION (DAYS)
Indicate the total num-
ber of days (round trip) for the trip being recorded.
COLUMN #14
ROUND TRIP MILES
Indicate the total miles (round
trip) for the trip being recorded.
COLUMN #15
PURPOSE OF TRIP
Circle the number under "From" and
the number under "To" which explains the purpose for each
trip.
NARA Reference Copy
000075
February 12, 1962 000003
MEMORANDUM
TO:
HOME INTERVIEWERS
'ROM:
C. O. PRATT
RE:
RECORDING VEHICLE DESCRIPTION AND RELATING TO
TRIP INFORMATION - BALTIMORE #747
Beginning with the "C-Home Interview Season" (February 19,
1962) the following information is to be obtained from D. U.
occupants and recorded on the Home Interview form.
1. Car information
a.
Make of car
b.
Model of car
C.
Year of manufacture
The following list shows some examples of various vehicle
makes that are to be used:
Ford
Rambler
Chevrolet
Corvette
Dodge
Volkswagon
Chrysler
Volvo
Studebaker
Jaguar
Nash
Comet
Plymouth
Dart
Buick
Valiant
Pontiac
Oldsmobile
Cadillac
Lincoln
Mercury
Corvair
Falcon
Thunderbird
Lark
Notice that the compact and sports cars should be listed
under make instead of model. Each make should be classified by
model, which, for the purpose of this study, means sedan (regular
or hard top), station Wagon or Convertible. Only the three
preceeding categories will be used to describe the vehicle model.
Each car in the household is to be designated by a number,
such as (1), (2), (3), etc. (Newest car (1), etc.). This informa-
tion is to be recorded on the front side of the interview form
under the "Notes" column. See sample D. U. form.
Also all auto driver trips made in the household are to be
designated by the car number making said trips. The car number
is to be recorded on the back side of the D. U. form under
"Note odd trips". See sample D. U. form. Please note that the
vehicle number is to be recorded for auto driver trips only.
2. Week-end trips
Previously we had been obtaining week-end trips at every
NARA Reference Copy
000076
000064
fifth household. Starting with "C" season we will record week-
end trips for every household interviewed. The blue forms
will no longer be attached to the D. U. form, since the inter-
viewers are to inquire at every D. U. as to whether or not
week-end trips were made on the previous week-end. - If trips
have been made, the information is to be recorded on the blue
form.
The vehicle number (as described in (1) above) is to be
recorded in column 14 (Round Trip Miles) for all auto driver
trips made out of the area on week-ends.
000077
NARA Reference Copy
Wilbur Smith and Associates
008065
12-61
OUT-OF-AREA WEEKLAY TRIP INSTRUCTIONS
Until the present time, any out-of-area trips by travel modes
other than private cars, trucks or taxis, have not been reported on
our interview forms. It has been decided that we should get infor-
mation on out-of-area trips by train, plane, bus, or boat on the
day preceeding the interview. The Special Trip Report form is to be
used for recording of all out-of-area weekday trips.
Out-of-Area Weekday Trips are those trips made for any purpose, to
or from anywhere outside the survey area, which begin in the survey
area or return into the survey area during the day preceeding the
day of interview (yesterday). A weekday trip begins at 4:00 A. M.
in the morning (yesterday) and ends the next morning (today) at
4:00 A. M. One way trips made by residents of the area which begin
or end in the survey area (yesterday) will be classed as weekday
trips.
Recording the Data on the Out-of-Area Weekday Trip Report
The route number and sample number should be copied from
the home interview form number H:-761 and the date the interview
takes place should be recorded either prior to or at the time of
the interview.
COLUMN #1
OCCUPATION AND INDUSTRY
This column is for office
coding.
COLUMN #2
PERSON NUMBER
This number should be the same number
used to identify the same person on the Home Interview
form H1-761 under G. Household information.
COLUMN #3
TRIP NUMBER
Each trip in a series of trips should be
serially numbered, e. go, a trip by the head of household
which involves three trips would be numbered starting
with the number one trip.
COLUMN #4
Circle figure 1 for male. Circle figure 2 for female.
Ignore figures 3, 4, 5, 6.
COLUMN #5
WHERE DID THIS TRIP BEGIN? CITY
The name of the city
or nearest city and the state in which the trip originat-
ed is a sufficient address. When the origins are inside
the survey area the name of the city used in the Study
name is a sufficient address.
COLUMN #6
WHERE DID THIS TRIP END? CITY
The name of the city
or nearest city and the state in which the trip ends is
a sufficient address. A trip will end when stops that
direct the route of travel are made. Stops for gas and
repairs, to eat a meal or to stay overnight are not
considered as directing the route of travel.
COLUMN #7
MODE OF TRAVEL
Circle the number designating the mode
of travel applicable to the trip you are recording.
Do not record auto driver or auto passenger trips.
000078
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000066
COLUMN #8
TOTAL PERSONS IN CAR In the event the trip is made by
one of the other modes, circle the number of the per-
sons residing in household you are interviewing who were
on this conveyance at the same time.
COLUMN #9
Cross out last weekend. Circle Number 2.
COLUMN #10
DAY TRIP BEGAN (YESTERDAY) Circle under "Began" the
number opposite the day (yesterday) that this trip origin-
ated.
COLUMN #11
DATE BEGAN
Record the date this trip started. (Yester-
day)
COLUMN #12
TIME TRIP BEGAN-ENDED
Indicate the starting time and
the arrival time of the trip being recorded.
COLUMN #13
Do not record in this column.
COLUMN #14
Do not record in this column.
COLUMN #15 PURPOSE OF TRIP Circle the number under "From" and
the number under "To" which explains the purpose for
each trip.
000079
NARA Reference Copy
EXTERNAL INTERVIEW
Instructions
Interview Stations
Interview Schedule
Weekly progress Report Form
Data - Total Volume & Interviews
WMATS Instructions
WMATS Interview Stations
WMATS Interview Schedule
000080
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Page 1 of 6
Wilbur Smith & Associates
000000
MA 5-61
EXTERNAL ROADSIDE INTERVIEW INSTRUCTIONS
COMPREHENSIVE ORIGIN-DESTINATION SURVEYS
The accelerated growth of urban areas in the past few years has
added impetus to the necessity of planning new streets, highways,
and parking facilities. These new and improved facilities
should not only be designed to accommodate the present day re-
quirements, but should provide for the increased needs in the
future. Proper transportation facts are necessary before a plan
of this magnitude can be formulated. Having acquired these facts,
a relation of the present and future transportation require-
ments can be evaluated, with the result being an estimate of
where and how people wish to travel in the future.
As a means of completing the travel data obtained in the Home,
Truck, and Taxi Interviews, an External Roadside Interview Sta-
tion will be operated at each major street, road, and highway
crossing the survey limits to determine the internal travel
patterns of persons entering the Metropolitan Area each day. At
these roadside interview stations, the traffic is stopped in an
orderly manner, and each driver is asked a few questions about
his trip. This trip information is later summarized and analyzed
with the trip information obtained in the internal surveys.
INTERVIEWING
There are two interview forms used at each survey station, a
tinted form for outbound traffic, and a white form for traffic
entering the survey area. These forms have a space provided for
which a specific answer should be entered. Only five questions
need be asked of passenger car drivers who have either a trip
origin or destination inside the survey area, whereas, seven
questions are necessary for similar truck driver trips. Additional
questions need be asked of passenger car and truck drivers whose
trip origin and destination are outside the survey area - these
trips are called through-trips i.e., they pass completely through
the survey area.
I. At the top of the External Trip Report form, the interviewer
should enter the station number, day of the week, month,
hour of day and his signature. Data should be entered in
the code boxes only. This information is necessary to
determine necessary facts about the interview.
Station Number
The attached station location sheet shows the
station codes.
000081
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Page 2 of 6
Day of Week
000069
Day
Code
Day
Code
Monday
2
Thursday
5
Tuesday
3
Friday
6
Wednesday
4
Saturday
7
Month
Month
Code
Month
Code
Month
Code
January
1
May
5
September
9
February
2
June
6
October
0
March
3
July
7
November
April
4
August
8
December
Y
Hour of Day
Hour
Code
Hour
Code
Hour
Code
1-2 AM
01
5-6
05
9-10
09
2-3
02
6-7
06
10-11
10
3-4
03
7-8 AM
07
11-12
11
4-5
04
8-9
08
12-1 PM
12
Hour
Code
Hour
Code
Hour
Code
1-2 PM
13
5-6
17
9-10
21
2-3
14
6-7
18
10-11
22
3-4
15
7-8 PM
19
11-12
23
4-5
16
8-9
20
12-1 AM
24
II.
Serial Number
For office coding only.
III. Vehicle Type
As the vehicle you are to interview approaches
your interviewing position, enter one of the numbers, from
+"e bottom of the interview form, which designates the type
vehicle from which the interview information is to be
obtained.
IV.
Total Persons In Vehicle
Also as the vehicle approaches,
enter the number of persons in the vehicle (including the
driver).
V.
Where Did This Trip Begin - Where Will This Trip End
This
question pertains to the Origin and Destination of the
vehicle being interviewed, and refers to a specific street
address inside the survey limits, or a City and State out-
side the survey limits. For trips to cities in this State,
only the City name is necessary unless the City name may
be confused with some other City in a neighboring State.
An example of this would be Greenville, N.C. and Greenvile,
S.C. If an interview station was being conducted in North
Carolina, it would be advisable to enter the name of the
State for trips to both Greenville, N.C. and Greenville, S.C.
For origins and destinations inside the survey area, a more
specific answer is necessary since the coding section must pin-
point these addresses to a specific city block. The following
types of addresses are adequate:
000082
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000050
1. Street name (Avenue, Street, Lane, etc.) and house number.
2. Name of a well known building, store, park, etc. If there is
more than one store in the survey area with the same name,
indicate the specific store by showing the street location.
3. Street name and block number (designate which side of the
street - North side, etc.).
4. Street name and names of the closest intersecting streets
(designate which side of the street.)
5. rural areas where houses do not have numbers, indicate
the approximate address by well known land marks: Chappel
Road, one mile South of Dry Creek; Fisk Road, half mile
West of Rand Road; etc.
6. Name of a street, the persons name and initials, and his
telephone number.
In this study, the city or community name within the study area
must be shown as part of the origin and destination address.
This requirement is necessary, since many street names are du-
plicated throughout the area, however, Baltimore need not be
shown for trips made within the city limits of Baltimore. Do not
enter mail routes and box numbers as an address.
Often, when interviewing outbound traffic, you may find it
necessary to first ask, "Where Will This Trip End." By approach-
ing the driver in this manner, you can often eleminate the
driver giving you his trip destination when you ask him where his
trip had begun. An example of this would be when a person,
residing outside the survey area, may have left home for a shop-
ping trip inside the survey area. When interviewing this trip
outbound, the driver will often give his home address when you
ask "Where Did This Trip Begin", as he will feel as if the trip
to the grocery was too insignificant to mention.
VI. Land Use This information should be obtained for the trip
origin or destination, when it is inside the survey area,
and pertains to exactly how the land is used. Other than
for residential property, a very specific answer is re-
quired (see attached land use code sheet). For example, a
person entering the city with a trip destination to a hard-
ware store; the interviewer would enter "hardware store"
as the land use. Other such land use definitions would be:
"residential", "drugstore", "bank", "restaurant", "furni-
ture mfg.", "furniture retail", "toy mfg.", "wholesale
grocery", "retail grocery", "doctors office", "wholesale
feed and grain", "retail feed and grain", clothing mfg.",
"shoe mfg.", "auto repair", "auto sales", "service station",
etc.
A land use entry of "OFFICE BUILDING" is not sufficient informa-
tion. You must specify what kind of business is transacted in
the particular office the trip began or ended. Many office build-
ings (a large insurance office building) may be owned by a
large company whose product and company name is generally asso-
ciated with the name of the building, whereas, they often rent
office space to organizations not associated with their particu-
lar type of business; you must specify the land use of the
particular office in which the persons trip began or ended.
NARA Reference Copy
000083
Page 4 of 6
060071
If the origin or destination address answers the "land use" ques-
tion, a separate land use entry is not necessary; a destination
address of "BUCKLES HARDWARE STORE - McCallie Avenue" would
answer the land use question of "hardware store".
No land use information need be recorded for origins and destina-
tions outside the survey area.
VII. Trip Purpose
Circle the code number which indicates the
purpose of the trip. The purpose of a trip from a person's
home to where he works would be coded "WORK-EMPLOYMENT".
Purpose of a trip from a social visit to home would be
coded as "SOCIAL". The purpose of a trip to serve a
passenger would be coded as the passenger purpose. A truck
driver's trip would be denoted as "WORK.BUSINESS" if his
trip was made for delivery purposes. If not for work, a
truck driver trips would be coded under other purposes. Be
sure to determine the exact trip purpose from drivers of
light-weight trucks as many of these vehicles are used
as personal modes of transportation. The trip purpose
question refers to the predominating purpose of why the
trip is being made.
Code 11 - Work-Employment
This refers only to the initial trip
to a person's place of employment and the final trip from his
place of employment. Normally, this will be a persons trip to
his place of employment in the morning, and his trip home at
night.
Code 21 - Work-Business
This refers to trips made by employed
persons in performance of their duties of employment: trips
made by a doctor in making his calls; a salesman calling on
customers; a secretary's trip to the post office to deposit the
company's mail; a truck driver delivering milk; a truck driver's
return to his office after he has completed his delivery schedule;
etc.
Code 12 - Personal-Business
Refers to trips to complete personal
business transactions not considered as duties of employment.
Trips to: pay a personal bill, deposit a "pay check" in the bank,
mail a personal letter, eat a meal at home or in a restaurant,
visit a doctor, look at a house for sale or rent, etc., would be
considered personal business.
Code 13 - Recreation
Includes trips for golfing, fishing,
movies, plays, concerts, picnics, pleasure riding, light re-
freshments, dancing, etc.
Code 14 - School
This refers to students who are actually
attending school. It includes public and private schools, uni-
versities and colleges, night schools, etc. Teachers and
employees at such institutions would be reported as going to work.
Code 15 9444 Social
Includes trips to church, lectures, funerals,
attend parties, civic meetings and duties of membership, visit
friends, visit business acquaintances in their home, etc.
NARA Reference Copy
000084
Page 5 of 6
Code 16 - Change Travel Mode
000072
This applies to trips made to
locations where a change of transportation mode is made. It is
applicable as the trip purpose, to that portion of the travel
which is necessary to reach the location where the change occurs.
An example would be where a person drives to a bus stop and
parks his car, and then "catches" the bus to work. The trip pur-
pose to where he parks his car would be "change travel mode".
However, a person going to a railroad station, etc. to leave
the survey area would be given a code number to reflect his
actual trip purpose.
Code 17 - Shopping-Convenience Goods
Convenience goods are
those normally found at food and drug stores, filling stations,
bakeries, barber shops, laundry, and other small specialty
shope such as those handling groceries, drugs, flowers, liquor,
ice cream, tobacco, magazines, etc. Generally, convenience
goods are found in close proximity to each neighborhood, al-
though, many of the products handled by these stores would be
considered as shopping goods such as; electrical appliances,
clothing, automobile tires, furniture, etc.
Code 18 - Shopping-Shopping Goods
Shopping goods are those
normally found at department stores, clothing stores, automobile
dealers, furriers, furniture, and appliances, lumber products,
etc. Generally, shopping goods are items which require some
degree of selection.
VIII. Where Does Car Driver Live Or Is Truck Based
The pri-
mary purpose of this question is to determine where the
driver of the automobile lives or where the truck is based.
If the driver of the auto lives within the survey area (see list
of cities in survey area) indicate the exact address of his
residence. If he lives outside the survey area indicate only
the city or community in which he lives. For trucks, indicate
the address of where the truck is based, if based in the survey
area, show the exact address. If based outside the survey
area, indicate only the city or community in which the truck
is based.
THE INFORMATION BOX IS DESIGNED TO SIMPLIFY THE ANSWER TO THIS
QUESTION.
Inbound Trips
If the auto driver lives or truck is based in
the same city or community where the trip originated, circle 1.
Origin Address. If the auto driver lives or truck is based
at the EXACT address of the trip destination, circle 2. Desti-
nation Address. If the auto driver lives or truck is based at
some other address, show the exact address inside the survey
area or name of city or community outside.
Outbound Trips
If the auto driver lives or truck is based at
the EXACT address of the trip origin, circle 1. Origin Address.
If the auto driver lives or truck is based in the same city or
community as the trip destination, circle 2. Destination
Address. If the auto driver lives or truck is based at some
other address, show the EXACT address inside the survey area or
name of city or community outside the survey area.
000085
NARA Reference Copy
Page 6 of 6
IX. Trucks Only
000073
1. Load-enter the number which denotes the approximate
load on the truck.
2. Commodity-enter the type of commodity the truck is
hauling such as: Furniture, gravel, groceries, electri-
cal machinery, ice cream, cement, gasoline, automo-
biles, fruit, live chickens, frozen chickens, cattle,
hogs, hay, garbage, etc.
X.
Ask Only of Trips Through Survey Area A trip through the
survey area is one which has both its trip origin and
destination outside the survey area. These through trips
can vary in length from a few miles to hundreds of miles.
Two additional questions should be asked the driver of all
through trip vehicles.
1. Route of entry or exit-if you are interviewing inbound
traffic on the white interview form you should ask
the driver on which road or highway he plans to leave
the city (survey area). If you are interviewing out-
bound traffic on the tinted interview form, ask the
driver on which road or highway he entered the city
(survey area). Enter the answer by showing the U.S.
or State route number, or the name of the road if it
does not have a route number. Your station location
sheet shows all highway numbers.
2. Intermediate Stop - when interviewing outbound traffic,
(tinted form) ask the driver if he made any stops in
the city survey area) and when interviewing inbound
traffic, white form) ask the driver if he plans to
make any stops in the city (survey area). Denote the
purpose of these stops 1. "Work or Business", 2.
"Shopping", 3. "Recreation", 4. "Eat Meal", 5. "Gas
or Oil", 6. "Overnight", also show the address of
where these stops were made. Very often the driver
will not know the address of the 4. "Eat Meal", 5.
"Gas or Oil", and 6. "Overnight", purposes especially
if the trip is inbound, but, the interviewer should
enter the purpose of these trips and place a question
mark in the address column.
"NOTES"
000086
NARA Reference Copy
age 1 of 3
Wilbur Smith & Associates
00074
MA 6-61
1961
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
EXTERNAL ROADSIDE INTERVIEW STATIONS
10
GOVERNOR RITCHIE HIGHWAY (Ma. Route 2) = 0.1 mile north
of Jones Station Road (1.1 miles south of Severna Park, Ma.)
11
OLD ANNAPOLIS BOULEVARD (Ma. Route 648) EXTIT 0.1 mile north
of Jones Station Road (1.1 miles south of Severna Park, Md. )
12
LAUREL ROAD == 0.1 mile north of Jones Station Road (1.0
mile south of Severna Park, Md.)
13
GENERALS HIGHWAY (Md. Route 178) == 0.1 mile southeast of
Indian Landing Road (1.0 mile southeast of Dorrs Corner, Ma.)
14
MILLERSVILLE ROAD = 0.3 mile south of Md. Route 178 (1.3
miles south of Dorrs Corner, Md.)
15
CECIL AVENUE == 0.1 mile north of Millersville Road (1.4
miles south of Dorrs Corner, Md.)
16
MD. ROUTE 3 == 0.1 mile north of Annapolis Road (Md. Route
175) (1.5 miles south of Dorrs Corner, Md.)
17
GAMBRILLS ROAD = 0.1 mile north of Maple Road (at
Gambrills, Ma.)
18
BURNS CROSSING ROAD == 0.2 mile north of Annapolis Road
(Md. Route 175) (at Gambrills, Md.)
19
DICUS MILL ROAD == 0.1 mile southwest of Burns Crossing
Road (0.5 mile north of Sappington, Ma.)
20
TELEGRAPH ROAD (Md. Route 170) == 0.1 mile south of Old
Mill Road (1.0 mile north of Odenton, Ma.)
21
REESE ROAD (Md. Route 554) === 0.1 mile north of Jackson
Grove Road (at Northeast Boundary of Fort George G. Meade)
22
DISNEY ROAD == 0.1 mile east of Annapolis Road (Md. Route
175) (at Northeast Boundary of Fort George G. Meade)
23
RIDGE ROAD (Ma. Route 713) == 0.1 mile north of Annapolis
Road (Md. Route 175) (0.4 mile north of Fort George G. Meade)
24
ANNAPOLIS ROAD (Md. Route 175) == 0.1 mile east of Harmans
25A
SB
Road (0.2 mile east of Baltimore-Washington Parkway)
25
BALTIMORE - WASHINGTON PARKWAY == 0.6 mile south of Annapolis
2513
N.B
5
Road (Md. Route 175)
26
ANNAPOLIS JUNCTION ROAD (Md. Route 32) == 0.2 mile west of
Baltimore-Washington Parkway (at Northwest boundary of
Fort George G. Meade)
27
WHISKEY BOTTOM ROAD == 0.2 mile north of Md. Route 602
(1.8 miles east of Laurel, Md.)
28
BROCK BRIDGE ROAD = 0.1 mile north of Md. Route 602 (1.4
miles east of Laurel, Md.)
29A
SECOND STREET (U. S. Route 1 North) =: at Patuxent River
(at Laurel, Md.)
29B
WASHINGTON AVENUE (U. S. Route 1 South) = at Patuxent
River (at Laurel, Ma.)
30
SEVENTH STREET (Md. Route 216) == at Patuxent River (at
Laurel, Ma.) )
31
NINTH STREET = at Patuxent River (at Laurel, Ma.)
32
COLUMBIA PIKE ( U. S. Route 29) = at Patuxent River (1.4
miles south of Scaggsville, Md.)
33
LIME KILN ROAD = 0.1 mile west of Scaggsville Road (Md.
Route 216) (1.3 miles west of Scaggsville, Ma.)
NARA Reference Copy
000067
Page 2 of 3
34
SCAGGSVILLE ROAD (Ma. Route 216) == 0.1 mile west of
Pindell School Road (2.0 miles west of Scaggsville, Ma.)
35
SIMPSON ROAD == 0.1 mile west of Pindell School Road
(3.0 miles west of Scaggsville, Ma.)
36
GUILFORD ROAD (Md. Route 32) == 0.1 mile west of Pindell
School Road (1.5 miles west of Simpsonville, Md.)
40
CLARKSVILLE PIKE (Md. Route 108) == 0.1 mile west of Cedar
Lane (3.1 miles west of Columbia, Md.)
41
CARROLL MILL ROAD == 0.1 mile west of Manor Lane (5.1
miles west of Columbia, Ma.)
42
FREDERICK ROAD (Md. Route 144) == 0.1 mile west of Manor
Lane (5.1 miles west of Ellicott City, Md.)
43
BALTIMORE NATIONAL PIKE (U. S. Route 40) == 0.1 mile east of
Marriottsville Road (6.0 miles west of Ellicott City, Ma.)
44
OLD FREDERICK ROAD (Md. Route 99) = 0.1 mile west of Hood--
stock Road (Md. Route 125) (1.3 miles south of Woodstock, Md.)
50
MARRIOTTSVILLE ROAD == At the North Branch of the Patapsco
River (1.0 mile north of Marriottsville, Md.)
51
LIBERTY ROAD (Md. Route 26) = at The North Branch of The
Patapsco River (at The Patapsco Roservoir)
52
NICODEMUS ROAD = At The North Branch of The Patapsco River
(at The Patapsco Reservoir)
53
WESTMINSTER PIKE (U. S. Route 140) == At The North Branch of
the Patapsco River (2.5 miles northwest of Reisterstown, Md.)
54
HOLLINGSWORTH ROAD == at The Baltimore County Line (1.6
miles east of Finksburg, Md. )
55
MT. GILEAD ROAD == At The Baltimore County Line (1.5 miles
southwest of Fowblesburg, Ma.)
56
HANOVER PIKE (Md. Route 30) == 0.2 mile south of Emory Road
(0.5 mile south of Fowblesburg, Ma.)
57
OLD HANOVER ROAD = 0.1 mile south of Byerly Road (0.5
mile south of Fowblesburg, Md.)
58
DOVER ROAD === 0.1 mile south of Mt, Zion Road (2.2 miles
east of Fowblesburg, Ma.)
60
FALLS ROAD (Md. Route 25) == 0.1 mile north of Stringtown
Road (Ma. Route 401) (0.8 mile north of Butler, Ma.)
61
YEOHO ROAD == 0.1 mile north of Stringtown Road (Md. Route
401) (2.0 miles northeast of Butler, Ma.)
62
GILLET ROAD == 0.3 mile north of Cold Bottom Road (2.3
miles west of Pine Hill, Ma.)
63
BALTIMORE-HARRISBURG EXPRESSWAY (I. Route 83) ==== 0.4 mile
north of Cold Bottom Road (1.8 miles south of Hereford, Md.)
64
YORK ROAD (Md. Route 45) == 0.1 mile north of Piney Hill
Road (0.2 mile north of Pine Hill, Ma.)
65
HEREFORD ROAD === 0,1 mile north of Piney Hill Road (0.5
mile north of Pine Hill, Md.)
66
MONKTON ROAD (Md. Route 138) == 0.1 mile northwest of Piney
Hill Road (0.7 mile west of Monkton, Md.)
67
WESLEY CHAPEL ROAD == 0.1 mile north of Gerting Road (1.0
mile northeast of Monkton, Ma.)
68
TROYER ROAD (Md. Route 138) = 0.1 mile north of Shepperd
Road (Md. Route 138) (0.1 mile north of Shepperd, Ma.)
69
OLD YORK ROAD == At The Baltimore County Line (0.9 mile
east of Shepperd, Ma.) )
70
HOUCKS MILL ROAD = At The Baltimore County Lir (1.2
miles southeast of Shepperd, Md.)
000088
NARA Reference Copy
Page 3 of 3
000076
71
Pocock Road == At The Baltimore County Line (1.8 miles
northeast of Manor, Md.)
72
HESS ROAD == At The Baltimore County Line (0.4 mile east
of Hess, Ma.)
73
JARRETTSVILLE PIKE (Md. Route 146)
H
At The Baltimore
County Line (0.5 mile south of Hess, Md.)
74
GREEN GLADE ROAD = At The Baltimore County Line (2.7
miles east of Sweet Air, Ma.)
80
BALDWIN MILL ROAD (Md. Route 165)
II
At The Baltimore County
Line (1.6 miles north of Baldwin, Md.)
81
PLEASANTVILLE ROAD = At The Baltimore County Line (1.0
mile north of Baldwin, Md.)
82
BOTTOM ROAD == At The Baltimore County Line (1.5 miles
west of Fallston, Md. )
83
HARFORD ROAD (Ma. Route 147) == At The Baltimore County
Line (1.5 miles northeast of Fork, Ma.)
84
BELAIR ROAD (U, S. Route 1) == At The Baltimore County Line
(1.7 miles north of Kingsville, Md.)
85
JERUSALEM ROAD === At The Baltimore County Line (1.7 miles
northeast of Kingsville, Md.)
86
JERICHO ROAD == At The Baltimore County Line (2.1 miles
northeast of Kingsville, Md.)
87
VINEGAR HILL ROAD === At The Baltimore County Line (2.5
miles east of Kingsville, Md.)
90
PHILADELPHIA ROAD (Md. Route 7) == At The Baltimore County
Line (1.3 miles southwest of Joppa, Md.)
91
PULASKI HIGHWAY (U. S. Route 40) ==== At The Baltimore County
Line (At The Gunpowder River)
NOTES
СОССОЯ
NARA Reference Copy
Wilbur Smith & Associates
000077
6/61
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
EXTERNAL ROADSIDE INTERVIEW SCHEDULE
DATE
DAY
STA. NO
HOURS OF OPERATION
CREW
6/13/61
Tuesday
10A
6 AM in 6 AM
1,2,3,4,5
6/14/61
Wednesday
10B
6 AM - 6 AM
1,3,5
13
6 AM 10 PM
2,4
6/15/61
Thursday
16A
6 AM - 6 AM
1,3,5
20
6 AM .10 PM
2,4
6/16/61
Friday
23
6 AM 10 PM
1,3
24
6 AM -10 PM
2,4
6/19/61
Monday
16B
6 AM #19 6 AM
1,3,5
21
6 AM -10 PM
2,4
6/20/61
Tuesday
25A
ó AM DATA 6 AM
1,3,5
26
6 AM 10 PM
2,4
6/21/61
Wednesday
25B
6 AM - 6 AM
1,3,5
6/22/61
Thursday
29A
6 AM ** 6 AM
2,4,5
6/23/61
Friday
32
6 PM
1,3
34
6 PM
2,4
6/26/61
Monday
29B
6 AM
1,3,5
30
6 PM
6/27/61
Tuesday
43A
6 AM
AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM AM - ** WAY as - -10 -10 -10 10 .10 10 10 10 10 10 10 10 6 6 6 6 6
2,4
1,3,5
36
6 PM
2,4
6/28/61
Wednesday
43B
6 AM
1,3,5
42
6 - PM
2,4
6/29/61
Thursday
44
6 PM
1,3
51
6 PM
2,4
6/30/61
Friday
53
6 PM
1,3
56
6 PM
2,4
7/5/61
Wednesday
63A
6 AM
1,3,5
60
6 PM
2,4
7/6/61
Thursday
63B
6 AM
1,3,5
64
6 PM
2,4
7/7/61
Friday
58
6 PM
1,3
73
6 AM -10 PM
2,4
7/10/61
Monday
80
6 AM -10 PM
1,3
83
6 AM .10 PM
2,4
7/11/61
Tuesday
84
6 AM -10 PM
2,4
91A
6 AM - 6 AM
1,3,5
7/12/61
Wednesday
90
6 AM 10 PM
2,4
91B
6 AM - 6 AM
1,3,5
92
A Outbound Traffic - Divided Highways
B Inbound Traffic - Divided Highways
Crew 1
Morning
2 Morning
3
Afternoon
4 Afternoon
5 Night
000090
NARA Reference Copy
000078
Wilbur Smith and Associates
EXTERNAL SURVEY
WEEKLY PROGRESS REPORT
JOB NAME
Week ending
Report No.
Previous
This
Totals
Totals
Week
to date
1. Number of persons
2, Number of man-hours
3, Vehicles passing
4. Number interviewed
5. Percent of traffic interviewed
6. Estimated percent completed
COMMENTS:
Date:
Resident Engineer
000091
NARA Reference Copy
EXTERNAL STATION SUMMARY
PALTIMORE HEIROLOLITAN AREA TRANSPORTATION STUDY
Peak
Ste. Total Total Percent Peak Peak
Peuk
Percent
Station Name
No.
Volume Inter. Inter.
Hours
Volume
Inter
Inter.
Remarks
Gov. hitchie Ewy.
(Outbound) (Md. Rt,
7-9AM
2)
10A
9052
5804
64.1
4-6PM
2460
1461
59.4
Gov. Ritchie Hwy.
(Inbound) (Md.. Rt.
7-9AM
2)
10B
8958
4332
48.4
4-61:
2624
1.152
43.9
Rain
Generals Hwy.
7-9AF
(Md. Rt. 178)
13
4933
2508
50.8
4-6PM
1716
74
43.6
Md. Rt. 3
7-9AM
(Outbound)
16A
5273
3341
63.3
4-61K 1331
50.1
Telegraph Road
7-9AM
Backed ked Nat'l.
(Md. Rt. 170)
20
5651
2837
50.2
4-61-M
1998
304
40.2
Pla. this traffic
into tHeir park-
ing lot
Bidge Road
7-9AM
(Md. Et. 713)
23
3092
1900
61.4
4-6PM
1646
721
43.8
Annapolis Road
7-9AM
No State Trooper
(MA. Rt. 175)
24
7590
3452
45.4
4-6PM
2718
870
32.0
for morning shift
Backed traffic
onto B-W Pkwy.
Md. Rt. 3 (South)
7-9AM
(Inbound)
16B
5235
3948
75.4
4-6PM
1623
1033
3.7
Reese Road
6-8AM
260002
(Md. Rt. 554)
21
2470
1810
73.3
4-6PM
7202
703
8.5
620000
NARA Reference Copy
Sheet 2 of 14
Peak
Sta. Total Total Percent Peak Peak
reak
Percent
Station Name
No.
Volume Inter. Inter.
Hours
Volume
Inter.
Inter.
Remarks
Paltimore-Washington
7-9AM
Heavy peak traffic
Parkway (Outbound)
25A
12916
5266
40.8
4-6PM
4384
1242
28.3
(Fort Meade)
N
7.4.
&
Annapolis Junction
6-10AM
4-5 Pm
214
1521
Road (Md. Rt. 32)
26
2609
1631
62.5
4-6PM
1470
719
48.9
5-6 PM
231
1247
6-7
232
665
Second St. (U.S.
7-9AM
Rt. 1 South)
294
8916
3822
42.9
4-6PM
2359
731
31.0
Columbia Pike
7-9AM
(u. S. Rt. 29)
32
7630
4564
59.8
4-6PM
2846
1397
49.1
Scaggsville Road
7-9AM
(Md. Rt. 216)
34
1349
1183
87.7
5-7PM
526
489
93.0
Washington Ave.
7-9AM
Motel owner pro-
(U.S. Rt. 1 South)
29B
8400
4474
53.3
4-6PM
21.79
1082
49.7
tested - station
was moved.
Seventh Street
7-9AM
(Md. Rt. 216)
30
2072
1791
86.4
4-6PM
729
649
89.0
Baltimore National
Pike (U.S. Rt. 40
7-9AM
West) (Outbound)
43A
5207
3604
69.2
4-6PM
1323
592
44-8
Guilford Rd.
7-9AM
(Md. Rt. 32)
36
1214
815
67.2
4-6PM
546
270
49.5
Paltimore National
Pike (U.S. 40 West)
7-9AM
(Inbound)
43B
5260
4360
82.9
4-6EM
1306
1116
85.5
Frederick Road
7-9AM
(Md. Rt. 144)
42
1326
1201
90.6
4-6PM
424
39L
92.2
60000
080000
NARA Reference Copy
Shout 3 of 4
Station Name
Sta. Total Total Percent Peak
Peak
Peak
No.
Beak
Percent
Volume Inter. Inter.
Fours
Volume
Inter.
Inter.
Lemarks
Cld Frederick Road
(Nd. Pt. 99)
8-20AM
44
845
726
85.9
4-613
238
21.7
91.2
Liberty Boad
(Md. Rt. 26)
6-8AM
51
4028
2532
62.8
4-6FM
1393
615
44.2
Westminster Pike
(U. S. Rt. 140)
6-8AM
53
6484
4212
65.0
4-6PR
2092
1061
50.7
Hanover Pike
(Md. nt. 30)
6-8AM
56
3293
2243
68.1
5-7PM
1177
572
48.6
Bultimore Carrisburg
Expressway (I-83)
(Outbound)
63A
9-11AM
3757
3274
87.1
4-6PM
1171
1048
89.5
Falls Road
(Md. Rt. 25)
6-8AM
60
1005
916
91.1
4-6PM
415
387
93.3
Paltimore-Harrisburg
Expressway (I-83)
(Inbound)
63B
7-9AM
3457
2634
76.2
4-6PM
983
678
69.0
York Road
(MA. Rt. 45)
64
7-9AM
999
836
83.7
4-6PM
249
226
90.8
Troyer Road
(MA. Et. 138)
7-9AM
68
542
492
89.8
4-6PM
174
167
96.0
Jarrettsville Pike
(xa. St. 146)
7-9AM
73
1354
1.136
83.9
4-6PM
428
397
92.8
Baldwin Cill Road
(itd. Bt. 165)
7-9AM
80
539
516
95.7
4-6PM
171
162
94.7
0000
000081
NARA Reference Copy
Sheet 11. of 4
Peak
Sta. Total Total Percent Peak Peak
Peak
Percent
Station Name
No. Volume Inter. Inter. Hours Volume Inter. Inter.
Remarks
Herford Road
7-9AM
(Md. Rt. 147)
83
1.255
1133
95.1.
4-6PM
373
363
97.3
Belair Poud
7-94K
(U. S. 1)
84
6418
4479
69.8
4-6PK
1618
1020
63.0
Pulaski Hwy.
Backed up traffic
(U.S. 40 East)
7-9AM
past signs -
(Outbound)
914
14464
5325
36.8
4-6PM
3679
1.163
31.6
dangerous because
of hills.
Philadelphia Road
7-9AM
(Md. Rt. 7)
90
2598
2167
83.4
4-6PM
1047
777
74.
Pulaski Hwy.
Backed up traffic
(U.S. 40 East)
7-9AM
dangerous because
(Inbound)
91.B
13694
4769
34.8
4-6PM
3004
1063
35.4
of hills.
Baltimore-Washington
7-9AM
Parkway (Inbound)
25B
11863
6281
53.0
4-6PM
3553
1085
30.5
Clarksville Pike
7-9AM
(Md.. Rt. 108)
40
1457
1328
91.1
4-6FM
483
461
95.5
Old Annapolic Blvd.
7-9AM
(Md. Rt. 648)
11
1386
1163
83.9
4-6PM
382
347
90.8
6-8AM
92
8324
3973
47.7
4-6PM
3394
977
8.8
Total
196,921 112839
57.3
(1434
29624
48.2
960000
000022
NARA Reference Copy
Wilbur Smith and Associates
Page 1 of 1
000083
7-61
WASHINGTON METROPOLITAN AREA TRANSPORTATION STUDY
ADDENDA TO INTERVIEW INSTRUCTIONS
I Length of Stay - This question should be asked of all outbound
passenger car drivers who are not residents of the Washington
Study Area. This includes both through and non-through trips.
For these trips obtain from the person being interviewed the
number of days he stayed in the Washington area. The number
of days should be indicated in the column as 1, the 3/4, 1, 11,
1, 1 3/4, 2, 21, etc.
For persons with an intermediate stop of overnight and who did
not spend any other time in the Washington area, enter "0"
in the code box. For persons who are employed in the Washing-
ton Survey Area and live outside, enter "1/3" day, if he did
not spend any additional time in the Washington area.
II Last Nights Lodging Address and Land Use - This question
should be asked of all outbound passenger car drivers who
are not residents of the Washington area but obtained lodging
in the Washington Survey Area the previous night. This in-
cludes both through and non-through trips. For this entry
obtain the name, address, and type land use structure where
he obtained lodging the previous night in the Washington
Survey Area. For Hotel, Motel, YMCA, Tourist Homes, etc.,
the name of the Hotel or Motel, and the section of area in
which located will be a sufficient address, 1.e., Albion
Hotel, Silver Springs, Jefferson Motel, Alexandria, YMCA,
downtown Washington, etc. When the name cannot be determined
denote the complete address and insert Hotel, Motel, etc. in
the land use column. For lodging and residential structures
give the street address and section of the area and indicate
residential in the land use column. If the name and address
indicates the type of land use structure, leave the land use
column blank. If the person being interviewed did not obtain
lodging in the Washington area, enter "No" in column.
For Through trips with an intermediate stop of "overnight",
ditto the last nights lodging column to indicate the lodging
address and enter the land use.
III You should determine the section or community name of the
area for all trip origins and destinations in Greater Balti-
more. If the trip origin or destination is in an area which
does not have a section or community name, enter the complete
address.
IV Do not obtain any information regarding truck commodity or load.
V
If the driver of any through trip vehicle indicates an inter-
mediate stop of work, personal, business, shopping, school,
social or recreation in the Washington Survey Area, enter
this trip as a non-through trip and enter the intermediate
stop as the origin or destination address.
NARA Reference Copy
000096
Wilbur Smith and Associates
Page 1 of 2
000084
DF 7-61
1961
WASHINGTON METROPOLITAN AREA TRANSPORTATION STUDY
EXTERNAL ROADSIDE INTERVIEW STATIONS
1
U.S. ROUTE 1 - VIRGINIA == At the Fairfax-Prince William
County Line. Station to be between bridge and the junction
of U. S. 1 and Shirley Highway (Maryland 350) 1 mile north
of Woodbridge, Virginia (4 lanes, fair)
2
VIRGINIA ROUTE 123-VIRGINIA == At the Fairfax-Prince
William County Line. Station to be just in Prince William
County. 2 miles north of Woodbridge, Virginia (2 lanes,
narrow, very poor)
3 VIRGINIA ROUTE 28 - VIRGINIA == At the Fairfax-Prince
William County Line. 4 miles north of Mannssas, Virginia
(2 lanes, poor)
4 U.S. ROUTE 29-211 Now VIRGINIA === At the Fairfax-Prince William
County Line. Just west of bridge over Bull Run 4 miles west
of Centreville, Virginia (2 lanes, good)
5 U.S. ROUTE 50 *** VIRGINIA = At the Fairfax-Loudoun County
Line. 2.5 miles west of Chantilly, Virginia (2 lanes, good)
6
VIRGINIA ROUTE 7 - VIRGINIA == At the Fairfax-Loudoun County
Line. Station between Esso Station and Lakeland Drive. 2
miles west of Dranesville, Virginia (2 lanes, good)
7
MARYLAND ROUTE 28 - MARYLAND == At the Montgomery-Frederick
County Line. 1 mile north of Dickenson (2 lanes, fair)
8 U.S. ROUTE 270 - MARYLAND == At the Montgomery-Frederick
County Line. 0.2 miles north of Maryland Route 109 at top
of hill. 1 mile west of Hyattstown (4 lanes divided - 20'
median)
9
MARYLAND ROUTE 355 - MARYLAND = At the Montgomery-Frederick
County Line. 0.1 mile north of Hyattstown, Maryland (2 lanes,
narrow, fair)
10 MARYLAND ROUTE 80 - MARYLAND == At the Montgomery-Frederick
County Line. Station to be 200 yards west of County Line.
1 mile west of Claggetsville, Maryland (2 lanes, fair to poor)
11 MARYLAND ROUTE 27 - MARYLAND = At the Montgomery-Howard
County Line. Station to be between County Line and Windsor
Forest Road or about 100 feet north of yellow line. 1 mile
north of Claggetsville, Maryland (2 lanes, narrow, fair to
good)
12 MARYLAND ROUTE 97 - MARYLAND = At the Montgomery-Howard
County Line. 1 mile north of Sunshine, Maryland (2 lanes,
narrow, poor)
NARA Reference Copy
000097
Page 2 of 2
000005
13 MARYLAND ROUTE 108 - MARYLAND == At Montgomery-Howard
County Line. 2 miles west of Ashton, Maryland (2 lanes,
narrow, curves in road, poor)
14 U.S. ROUTE 29 MARYLAND == At Montgomery-Howard County Line.
1.5 miles south of Scaggsville, Maryland (2 lanes, fair)
15 U.S. ROUTE 1 MARYLAND === At Prince Georges-Howard County
Line. At Laurel, Maryland (4 lanes, no median except on
bridges)
16 MARYLAND ROUTE 602, MARYLAND == At Prince Georges-Howard
County Line. Station to be 50 yards from bridge in Laurel,
Maryland (2 lanes, fair)
17 BALTIMORE-WASHINGTON EXPRESSWAY, MARYLAND == At Anne Arundel-
Prince Georges County Line at S.W. border of Fort George G.
Meade. Northbound Station to be 0.1 mile south of Maryland
Route 602. Southbound station to be 0.1 mile north of Mary-
land Route 197 (4 lanes, 100 foot median)
18 MARYLAND ROUTE 3 MARYLAND == At Prince George-Anne Arundel
County Line. 2 miles south of Conaways, Maryland (4 lanes,
20 foot median, good)
19 U.S. ROUTE 50-301 MARYLAND == At Prince George-Anne Arundel
County Line. 1.5 miles west of Maryland Route 3 (4 lanes,
20 foot median, good)
20 MARYLAND ROUTE 219 214 MARYLAND == At Prince George-Anne Arundel
County Line. 3.5 miles west of Davidsonville, Maryland.
Station to be approximately 25 yards west of bridge (2 lanes,
fair)
21 MARYLAND ROUTE 4 MARYLAND === At Prince George-Anne Arundel
County Line. 1 mile west of Drury, Maryland. Station to be
east of bridge unless new road and bridge construction is
completed. In this case station will have to be west of
river (2 lanes, narrow, fair)
22 MARYLAND ROUTE 381 MARYLAND = At Prince George-Charles Coun-
ty Line. 1.5 miles north of Patuxent, Maryland (2 lanes, fair)
23 U.S. ROUTE 301 MARYLAND == At Prince George-Charles County
Line. 2 miles south of Brandywine, Maryland (4 lanes, 20 foot
median)
24 MARYLAND ROUTE 210 MARYLAND == At Prince George-Charles Coun-
ty Line. 1 mile north of Bryans Road, Maryland. Stati on to
be 150 yards north of County Line (2 lanes, good)
NOTES
000098
NARA Reference Copy
Wilbur Smith and Associates
7/61
000006
WASHINGTON METROPOLITAN AREA TRANSPORTATION STUDY
EXTERNAL ROADSIDE INTERVIEW SCHEDULE
DATE
DAY
STA. NO.
HOURS OF OPERATION
CREW
7/31/61 Monday
18A
6 AM the 6 AM
1,3,5
16
6 AM - 10 PM
2,4
8/1/61
Tuesday
18B
6 AM - 6 AM
1,3,5
14
6 AM - 10 PM
2,4
8/2/61
Wednesday
17A
6 AM - 6 AM
1,2,3,4,5
8/3/61
Thursday
17B
6 AM - 6 AM
1,2,3,4,5
8/4/61
Friday
13
6 AM - 10 PM
1,3
12
6 AM 1 10 PM
2,4
8/7/61
Monday
15
6 AM - 6 AM
1,2,3,4,5
8/8/61
Tuesday
11
6 AM pled 10 PM
1,3
8/9/61
Wednesday
8A
6 AM - 6 AM
1,3,5
10
6 AM - 10 PM
2,4
8/10/61 Thursday
8B
6 AM - 6 AM
1,3,5
9
6 AM - 1,0 PM
2,4
8/11/61 Friday
7
6 AM - 10 PM
1,3
8/14/61 Monday
3
6 AM - 6 AM
1,3,5
5
6 AM - 10 PM
2,4
8/15/61 Tuesday
4
6 AM Chip 6 AM
1,3,5
6
6 AM TMP 10 PM
2,4,5
8/16/61 Wednesday
1A
6 AM -- 6 AM
1,3,5
2
6 AM - 10 PM
2,4
8/17/61 Thursday
1B
6 AM - 6 AM
1,3,5
8/21/61 Monday
19
6 AM - 6 AM
1,3,5
20
6 AM #11 10 PM
2,4
8/22/61 Tuesday
19
6 AM - 6 AM
1,3,5
8/23/61 Wednesday
23A
6 AM - 6 AM
1,3,5
22
6 AM - 10 PM
2,4
8/24/61 Thursday
23B
6 AM low 6 AM
1,3,5
24
6 AM - 10 PM
2,4
8/28/61 Monday
21
6 AM - 6 AM
1,3,5
A Outbound Traffic we Divided Highways
B Inbound Traffic - Divided Highways
Crew 1
Morning
2
Morning
3
Afternoon
4
Afternoon
5
Night
000099
NARA Reference Copy
TRUCK STUDY
Sampling
Interview Instructions
Office Procedure
000100
NARA Reference Copy
000088
TRUCK SAMPLING
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
Truck sampling is the selection of specific truck owners
to be interviewed for the purpose of obtaining truck travel patterns
within the survey area. Truck registration records were used as
the population from which the required fifteen percent sample was
selected. The fifteen percent sample was selected by picking
fifteen registrations in every one hundred, which is, in effect,
selecting every six and one half registration cards, This, of
course, is impossible, therefore, alternate selection of each sixth
and seventh card was the method used for selecting the required
sample.
Truck registration records were obtained for Baltimore City,
Baltimore County, Anne Arundel County and Howard County by con-
tacting the following people:
Baltimore City
Mr. W. M. Kinnersley, Jr.
Supt. Bureau of Receipts
Baltimore County
Mr. Quinn
Supt. of Collections & Receipts
Anne Arundel County
Mr. C. G. Smith
Budget & Fiscal Officer
Howard County
Miss Clara Sykes
Deputy Treasurer
The Maryland Department of Motor Vehicles does not maintain
a file of vehicle registrations by political sub-divisions. It was
therefore necessary to collect the required truck registrations
from Baltimore City and each County inside the survey area which
receive D.M.V. registrations of vehicles for tax auditing purposes.
The only registrations collected directly from the D.M.V. for
sampling are those registered under "Domestic Corporation" as de-
fined in paragraph 81 (q) of the D.M.V. Motor Vehicle Law 1959 edition.
Other registrations collected directly from the D.M.V. but
did not require sampling included corrected cards (which would
have been sampled in the original registration) and Municipal,
County and State registrations (which had been sampled from lists
obtained from these respective levels of government).
Baltimore City and Anne \rundel County registrations were
sampled in the offices where the cards were filed while Howard and
Baltimore County registrations were transferred to the study office
where the required sample was selected.
Counties in the State of Maryland retain a registration
stub for every vehicle that has a registration address within their
particular boundaries. These stubs are color coded for various
type vehicles, making the identification of truck registration
cards relatively simple. The following list shows the classifica-
tion of trucks and the color of registration stubs that were
sampled:
000101
NARA Reference Copy
000009
TRUCK CLASSIFICATION
STUB COLOR
Privately owned
white
Commercial
deep yellow
Tractor
gray
Solid Tire
orange
Farm
Aqua
Motor Freight
light yellow
Dump Truck
deep yellow
In order to insure the accuracy of the sampling technique
several basic factors must be given considerable attention prior
to and during the truck interviews. These factors could sub-
stantially affect the overall truck travel pattern and are there-
fore given individual attention below:
1.
ADDITIONAL SAMPLING
In order that representative
truck travel may be obtained for the entire period of the survey
it is necessary to sample additional truck registrations as they
are submitted to the appropriate counties or Baltimore City.
This additional sampling will include new truck registrations,
trucks that are traded within the study area and trucks traded
from outside the area to counties inside the area. The sampling
was done each month from April 1961 to April 1962.
2
VEHICLES REGISTERED OUTSIDE OF SURVEY AREA
As
recommended in the Bureau of Public Roads Home Interview Manual,
the truck sample was selected from all truck registrations in the
counties included in the survey area and counties partially includ-
ed. Registration cards as obtained from the counties were not
grouped in any recognizable order by area within the county,
therefore, it may be assumed that the registration population is
distributed randomly throughout the counties. If this is the case,
ou t of area registrations are stratified throughout the sample
population. It, therefore, would not matter which method of
sample selection is used--either that of climinating all registra-
tions out of the survey area and then selection of the sample
or selecting the sample from all registrations and then eliminating
the samples that are not included in the survey area. The latter
method was used in selecting the truck sample in the Be ltimore
Metropolitan Area.
3
VEHICLES THAT ARE TRADED
In the State of Maryland,
when a vehicle is traded it is necessary for the owner to obtain
a new registration card. These registrations appear among the
registrations that are received by the counties after the initial
registration period. Again, if the population is randomly distri-
buted, for every sample (selected initially) of this nature, 6½
registrations will be changed. Since these registrations are
obtained and sampled after the initial sampling process, it is
not necessary to interview owners of vehicles who have traded for
another vehicle.
4
VEHICLES JUNKED OR USED CONTINUALLY OUTSIDE OF THE
SURVEY AREA
For all practical purposes, it may be assumed that
the truck registration population is relatively stable during any
one year. If this is true, the number of new truck registrations
plus the number of registrations that are obtained for trucks traded
NARA Reference Copy
00102
008000
from outside the area to inside the area is equal to the number of
junked trucks plus the number of trucks traded from inside the
area to outside. These new truck registrations and registrations
of trucks traded from outside to inside are obtained from the
counties after the initial sampling and are sampled as described
in No. 1 above. It is, therefore, not necessary to interview
junked vehicles or vehicles traded outside the area.
5
VEHICLES REGISTERED ADJACEMT TO THE SURVEY BOUNDARY
Although many trucks may have a registration address just outside
the survey boundary, they may be used continually inside the survey
area. If this is the case it is necessary to obtain the trucks
daily travel pattern. The interviewer must, therefore, attempt to
obtain travel information for any sample registration immediately
adjacent to the survey area. If the truck is used outside the
survey area, the interview is returned and appropriate considera-
tion is given in the truck expansion factor.
Due to the extremely large number of trucks within the
survey area it was necessary to conduct the truck survey over
approximately a six months period. This time span necessitated
a continuous sampling technique which requires special treatment
of some of the factors used in the truck expansion formula. This
truck factor as normally applied is described on page 118 of the
"Manual of Procedures - Home Interview Traffic Study" published
by the Bureau of Public Roads in 1954. The following tabulation
shows now various type incomplete interviews must be assigned to
the "L" and "M" factors if a continuous sampling tochnique is
used:
The "L" factor consists of the following:
1. Junked vehicles
2. Wrecked vehicles
3. Vehicles out of service for repairs
4. Owner resides outside of study area
5. Vehicle has been traded
6, Vehicle has been sold
The "M" factor consists of the following:
1. Vehicle is registered inside the study area but
is used outside
2. The owner refused to give travel information
3. Interviewer could not locate owner
All truck samples are recorded on the attached Truck Unit
Sample form and later transferred to the standard truck interview
form. In order to reduce the travel time of the interviewers, samples
in the same census tract located within Baltimore City were grouped.
Truck samples in the counties, however, were grouped by Route No.,
Street name, P. O. district or other convenient methods. These group-
ed samples were then assigned to interviewers residing in the same
general area to minimize travel time for the interviewers.
000103
NARA Reference Copy
GOVERNMENTAL TRUCK SAMPLING
In as much as governmental vehicles are a part of the
truck travel patterns within the survey area, information concern-
ing the movements of these trucks was collected from the City,
State, County and Federal Governments.
The procedure used in collecting data and sampling these
trucks was as follows:
1. The agency or agencies were located within the respec-
tive levels of government that were in possession of records list-
ing all vehicles used by the government.
2. If the governmental agency operated trucks both
inside and outside the survey area, a vehicle list was requested
to include only those trucks operating inside the survey area.
Ordinarily, this list contained a limited amount of information
required such as, truck number and departmental assignment.
Additional pertinent information would be obtained if available.
Emergency vehicles such as ambulances and fire engines were not
included on the sample lists.
3. A fifteen percent (15%) sample was sclected employing
a procedure similar to the one used in sampling private-owned
trucks. The one major exception being that the alternate selection
of each sixth and seventh vehicle was selected from the lists
obtained rather than registration cards which were unavailable.
4. A letter was sent to the head of the respective depart-
ments within the various levels of government operating trucks
to be sampled informing them of the survey. A request for addition-
al information was made such as; truck assignment location, person-
in-charge, and phone number. The State Roads Commission advance
truck interview letter was also enclosed.
5. All information obtained was entered on sample truok
reports in preparation for assignment.
Governmental vehicle records were obtained for Baltimore
City, Baltimore County, Anne Arundel County, and the Federal
Government by contacting the following:
FEDERAL GOVERNMENT
General Services Administration
D. W. Osborn, Chief
Interagency Motor Pool
U. S. Post Office
Jack Winakur, Chief
Motor Vehicle Operations
U. S. Army Engineer
Carl W. Lough
Corps of Engineers
Automative Equip. Inspector
Ft. Holabird
Major John J. Goreman
Post Transportation Officer
U. S. Coast Guard
Thomas Yamostny, Foreman
Transportation, U.S. Coast
Guard Yard
Maryland National Guard
U.S. Property & Fiscal orrogo104
Col. Ervin Ebaugh
NARA Reference Copy
000092
STATE OF MARYLAND
Dept. of Budget & Procurement
James P. Slicher
Chief of the Budget Bureau
State Roads Commission
Truman Keeney
Equipment and Trucks
CITY OF BALTIMORE
Bureau of Transportation
John W. Valis
Transportation Superintendent
Fire Department
John J. 0' Mailey
Executive Secretary
BALTIMORE COUNTY
Central Services
a. D. Erck
Assistant Purchasing Agent
Board of Education
Mrs. Prudden
ANNE ARUNDEL COUNTY
Public Works Department
Mr. Rudisill, Superintendent
Public Works Garage
Sanitary Commission
Charles E. Andrews
Assistant Secretary
HOWARD COUNTY
County Commissioner
Lloyd G. Taylor, Clerk
Howard County Commissioner
DOMESTIC CORPORATIONS
Registrations collected directly from the Department of
Motor Vehicles are vehicles owned by those corporations in the
Public Utility, Transportation and Communication industries.
These registrations were obtained from Mrs. Bergkempt of the
D.M.V. Auditing Department and transferred to the study office
where the required sample was selected in the same manner as those
obtained from the political sub-divisions.
It was noted that all "domestic corporation" registrations,
inside the survey area, were located in Baltimore City only; the
remaining were all located outside the survey area.
NARA Reference Copy
000105
000093
OFFICE PROCEDURE
Once the sampling has been completed the information must
be transferred from the sample listings to the interview forms.
This information completes the first three lines of the truck
report except for the telephone number. Envelopes and form
letters are also prepared at this time and attached to the inter-
view form. Each of the four major political sub-divisions in the
study area requires a separate filing arrangement.
FILING OF UNASSIGNED SAMPLES
The samples for Baltimore City are filed by census tract.
Using the census tract manual of 1960 the census tract number is
entered on the dotted line preceeding the sample number on the
interview form. The interview form and letter of introduction
are then filed into the proper census tract.
Baltimore County samples are filed by postal zone or by
community where postal zones do not exist. The postal zone or
community appears as part of the address on the interview form.
Postal zones and communities are not interfiled and so the two
separate files are maintained. This is convenient for assignment
purposes.
The samples for Howard County are filed by community. The
rural nature of the county discouraged any further breakdown.
Here too the community is found as part of the address on the
interview form.
For Anne Arundel County the samples are divided into
election districts and then sub-divided into communities within
the election district.
This filing arrangement proved satisfactory for the
assigning of samples to the interviewers.
THE ASSIGNING OF INTERVIEWS
Each interviewer is assigned an area in which he is to
work. Most of these areas are comprised of census tracts, postal
zones and communities. Revision of the assigned areas is required
approximately once a month provide each interviewer with adequate
work.
Approximately fifty samples are pulled from the file and
recorded for each interviewer prior to his coming into the office.
An attempt is made to keep an interviewer in one area until all
samples in that area are completed. When the interviewer receives
the samples that "date out" is recorded. Form T2-961 (see attached
sample) is used for this record.
CHECKING OF INTERVIEWS
Each interviewer has a weekly appointment so he can return
000106
NARA Reference Copy
000094
his completed interviews and receive new work. At this time the
reports are checked for completeness.
The reports are classified as complete, "M" or "L" as
described on page 118 of the "Manual of Procedures - Home Interview
Traffic Study" published by the Bureau of Public Roads in 1954.
Following this the date in, interview day, number of trips and
classification are recorded. The interview day as written on the
form was taken to mean day of travel. The month of the year and
day of the week is recorded considering Sunday to be the first
day of the week. A numerical listing of all samples (0001 to
9999) is maintained in which the date out, date in and the
interviewer's number is recorded on completion of the report.
The numerical list of samples is maintained on Form H2-861 (see
attached sample)
The reports returned by the interviewer are kept on a
monthly basis. At the end of the month the reports are checked
against the record and then filed into envelopes where they are
kept in numerical order awaiting coding.
PHONE CHECKING
Every sample in the "L" category plus those notated "used
out of area" from the "M" category are checked by telephone.
After the call the results are recorded in the "quality control
record". A separate record is maintained for each interviewer.
The report is then either returned to the interviewer or filed
according to classification,
At times it is necessary to check other types of reports.
An excessive number of reports returned with the notation "not in
use" or "used only on construction site may merit a phone check
to verify the information.
FIELD CHECKING
Ten percent of the completed reports plus all of the
"refusals" and those that "could not be located" are field checked.
Each interviewer is checked weekly. A"quality" control record
is maintained for field checks as well as for phone checks on
Form HTI-1061.
MISCELLANEOUS REMARKS
A progress summary is maintained for each interviewer on
a weekly basis; this is used as one means of checking efficiency.
Form H4-861 (see attached sample) is maintained for each interviewer.
A report is prepared each week which shows the weeks work for all the
interviewers and is used for comparison purposes. The form is the
same as the progress summary (H4-861) except the "week ending"
column is replaced by the interviewer's name.
At the end of each week a "Weekly Progress Report" (see attach-
ed sample) is made showing the weeks work plus the accumulated
totals. This report is forwarded to the State Roads Commission and
the Bureau of Public Roads for their review.
000107
NARA Reference Copy
000095
Supplementary instructions to the original truck inter-
view instructions are written as required. Each interviewer
receives a copy of these supplements.
Following are sample copies of the reports described in
this report. Reference is made on each sample copy as to which
page of the report describes its use.
000108
NARA Reference Copy
Wilbur Smith and Associates
T1-761
000096
TRUCK INTERVIEW INSTRUCTIONS
PURPOSE OF THE SURVEY
The accelerated growth of urban areas in the past few years has
added impetus to the necessity of planning now streets, highways,
and parking facilities. These new and improved facilities, should
not only be designed to accommodate the present day requirements,
but should provide for increased transportation needs in the future.
Proper transportation facts are necessary before a plan of this
magnitude can be formulated. Having acquired these facts, present
and future transportation needs can be evaluated, with the result
being a projected estimate of where and how people wish to travel
in the future.
The best known method of obtaining travel data on trucks owned in
an urban area is to interview the owner of each truck. As this
would be a very time consuming task, a statistical sample of truck
owners is selected for interview. Past studies have shown that
the truck travel information obtained from a statistical sample
is an accurate representation of the existing truck travel patterns.
WHICH TRUCK TO INTERVIEW
A random sample of fifteen percent of all trucks registered in the
survey area was selected as a base for interviewing. It is importantt
that the information obtained for these trucks be accurate and
complete, as this travel information will be expanded to represent
all local truck movements in the area.
THE FOLLOWING INFORMATION PERTAINS TO THE TRUCK INTERVIEW FORM
T1-761. EACH SECTION IN THE INSTRUCTIONS WILL BE PRECEDED BY A
NUMBER - THIS NUMBER REFERS TO A SPECIFIC ENTRY ON THE INTERVIEW
FORM.
1
OWNER. INFORMATION OBTAINED FROM REGISTRATION RECORDS This
entry will contain the name of the person or company in whose
name the truck is registered.
TELEPHONE NUMBER Enter the telephone number to serve as a
reference n the event that additional information is required.
2.
ADDRESS. INFORMATION OBTAINED FROM REGISTRATION RECORDS This
entry will contain the truck owners address.
SAMPLE NUMBER This entry identifies a particular truck sample.
3
STATE LICENSE NUMBER. INFORMATION OBTAINED FROM REGISTRATION
RECORDS This entry identifies the license number of the
vehicle to be interviewed.
Do not complete the interview under the following conditions,
but, return the interview form to your supervisor with one of the
following notations:
A. Truck found to be junked; wrecked; out of service for
repairs; or address of owner found to be outside of
000109
NARA Reference Copy
Page 2
000097
Survey Area;
B. Truck was registered inside the Survey Area, but used
continually outside the Survey Area; way transferred to
a new owner residing outside the Survey Area; could not
find owner to obtain travel information; or owner refused
to answer questions. If the truok has been sold (not
traded) the interviewer should obtain the name and address
of the new owner.
MAKE OF TRUCK. INFORMATION OBTAINED FROM REGISTRATION RECORDS.
This entry will contain the make of truck, as copied from the
registration records.
YEAR OF MANUFACTURE. INFORMATION OBTAINED FROM REGISTRATION
RECORDS
This entry will contain the year in which the truck
was manufactured, as copied from the registration records.
4
TYPE TRUCK The interviewer should circle the number which
donotes the type of truck, The pictorial description form
should be used to determine the type of truck.
3. Panel or Pickup
37. Three Axle Combination
4. Two Axle-Single Tire
47. Four Axle Combination
5. Two Axle-Dual Tire
57. Five Axlo Combination
6. Three Axle-Single Unit
5
DAY AND DATE OF TRAVEL The interviewer should enter the day
and date for which travel information is obtained. The travel
day begins at 4:00 A.M. in the morning and ends the next morn-
ing at 4:00 A. M., for example, when interviowing on Friday, you
are to obtain all the trips made by this truck (include trips
by more than one driver) during the 24 hour period beginning
4:00 A.M. Thursday morning and ending at 4:00 A.M. Friday morn-
ing. The travel day is defined in this manner so that it will
begin and end at a time when travel is the lightest.
REGISTERED GROSS WEIGHT
This entry will contain the registered
gross weight of the truck and should be obtained from the truck
owner.
6
INDUSTRY
The interviewer should unter the specific type of
industry in which the truck is used, such as, agriculture,
forestry or fishing; mining or mineral extraction; construction
or related maintenance; manufacturing or processing; transporta-
tion, communication, utilities, wholesale or retail; personal
service; amusement, recreation; professional or related ser-
vices; or State, City, or Federal Government.
BUSINESS
The interviewer should enter the specific business in
which the truck is used, such as, farming, truck gardening, fruit
growing; stone, sand, or gravel mining; carpentering, heating,
electrical, flooring, painting; food, candy, textile, or cloth-
ing manufacturer; general trucking, moving and storage, railway
express, contract hauling; meats, groceries, fruits, automobiles,
sales, cleaning, dying, pressing; amusement parks, bowling
alleys, theatres; colleges, churches, radio repair shop.
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7
ESTIMATED DAYS MILEAGE WITHIN SURVEY AREA
Enter the estimated
number of miles the truck was driven within the survey
area on the travel day (yesterday). Often this can be deter-
mined very accurately from trip records, or from the driver of
the vehicle.
8
TOTAL NUMBER OF STOPS OR TRIPS WITHIN SURVEY AREA The inter-
viewer should enter the total number of stops or trips made by
the truck during the 24 hour travel day (yesterday). This total
should include the short trips which are omitted or grouped
together; refer to origin-destination definitions.
WHAT IS A TRIP A trip is defined as one way travel from one point
to another, for a particular purpose, such as those listed in column
12 of the truck report. Thus, round trips, to and from a delivery
point, represent two separate trips. Also, a continuous trip, such
as a pleasure drive through the park, should be considered as two
trips; the most distant point reached during the drive being recorded
as the end of the first trip and the beginning of the second. In
general, all stops which direct the route of travel are generally
considered a valid trip and should be recorded.
WHEN TRIP STOPS MAY BE DISREGARDED
Generally, a stop is regarded
as the end of one trip and the beginning of another. Exceptions
would be when the stops are made for relatively unimportant purposes
which do not determine the route of the travel, such as to drop a
letter in a mail box, buy 8 package of cigarettes, buy light refresh-
ments, etc. Stops of this nature, ordinarily, do not control the
route of travel and should be disregarded. Of course, stops made
to avoid conflict with traffic or to comply with directions of
traffic officers or traffic centrol signals and signs should be dis-
regarded. Trips made to and from cities outside the survey area
should be shown only when either the trip origin or destination is
inside the survey area. Disregard all trips which begin and end
outside the survey area.
BUSINESSES REQUIRING CIRCUITOUS TRAVEL
Certain types of businesses
require truck travel of a circuitous nature, e.g. a series of travel
involving many short trips, often, only a block or less in length;
a garbage truck, paper route, milk truck, etc. When recording
trips made outside the Central Business District, group into one
trip the trips which are made in the same direction; this grouped
trip should not exceed more than seven blocks in length. The origin
of the first trip and destination of the last trip are sufficient
to show the route of travel. For ample, a milk truck is driven
from the plant to his first delivery on B Street. He continues to
make deliveries on B Street by driving his truck from block to
block for seven blocks. Following his last delivery on B Street,
he drives to K Street where he makes a series of deliveries for
five blocks. He then drives back to the plant. For our survey
purposes, the truck made five (5) trips:
1. From plant to first customer on B Street.
2. From first customer on B Street to last customer
on B Street.
3. From last cus. her on B Street to first customer
on K Street.
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4. From first customer on K Street to last customer on
K Street.
5. From last customer on K Street back to the plant.
If this delivery man makes many stops on the same street and the
total travel on this street exceeds seven blocks, the trips should
be separated into seven block increments. For example, suppose
the delivery man drives from his plant to B Street and takes
stops at 100 B Street, at 300 B Street, and each block to 1700
B Street, and then returns to his plant. He has made five trips:
1. From plant to 100 B Street.
2. From 100 B Street to 700 B Street.
3. From 700 B Street to 1400 B Street.
4. From 1400 B Street to 1700 B Street.
5. From 1700 B Street to his plant.
When short trips are grouped, show the total number of trips
that have been grouped in the "No. of Grouped Trips" box in
Column 11 of the Truck Report.
TRUCK TRIPS WITHIN THE CENTRAL BUSINESS DISTRICT (See attached map)
should not be grouped, but the origin and destination of each trip
within the area outlined on the attached map should be entered in
the trip origin and destination column.
9
TRIP NUMBER
For Office Coding only.
10 & 11
WHERE DID THIS TRIP BEGIN? WHERE DID THIS TRIP END?
These are the two most important questions on the Truck Inter-
view form. They must be accurate and complete. These origins
and destinations refer to the specific address where the person
began and ended his trip and does no: rofer to where he parked
his truck. The address of the origin and destination must be
sufficiently clear so that the coding section can pinpoint the
trip ends (origin and destination) to specific blocks. The
street name and house number are preferred in residential areas.
The name of commercial, governmental, etc. establishments and
the street on which located are preferred. The following types
of addresses are sufficient:
1. Street name, (Avenue, Street, etc.) house number, and the
City, Community, Subdivision, etc. in which located.
2. Name of a building, store, park, etc., street, and city,
community, subdivision, etc. in which located.
3. Street name and block number (500 block of Hale Ave.) odd
numbers, even numbers, south side, etc. and the City,
Community, Subdivisions, etc. in which located. If you are
unable to determine an address the name of a street alone
is not sufficient. In rural areas, indicate the approxi-
mate addresses by well known landmarks: Chappel Road,
One mile south of Dry Creek; Fisk Road, 1/2 mile west of
Rand Road; etc. DO NOT USE MAIL ROUTE NUMBERS. Only the
City and State need be shown for trips with either the
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000100
origins or destinations outside the survey area. Cities
not shown on the attached list of cities, communities, and
subdivisions are outside the survey area. However, complete
addresses must be obtained for trip origins or destirations
in the Greater Washington area, which include the Virginia
counties OI Arlington and Fairfax, and the Maryland counties
of Prince George and Montgomery. Trips made entirely outside
the study area, neither trip origin or destination within
the survey arca, are not to be recorded. A trip on a train,
airplane, or bus would not be entered on the "Internal Trip
Report". The terminal would be shown as the trip origin or
destination of a person entering or leaving the city by
train, plane, etc.
10 & 11
LAND USE
This quostion should be asked in conjunction
with the trip origin and destination, and makes reference to
exactly how the land is used. Other than for residential
property, a very specific answer is required (see attached
land use code sheet). For example, a man drives from home
(residential) to work (furniture manufacture ) in from work
( furniture manufacture) to lunch (restaurant ) ; from lunch
(restaurant) to call on a customer (wholesale furniture deal-
er) ; from customers office (wholesale furniture dealer) back
to his office (furniture manufacture) ; from his office (furniture
manufacturer) to home (residential)
A
land use entry of shopping
center or office building is not sufficient. You must specify
what kind of business is transacted in the particular place the
trip began or ended. Many office buildings ( a large insurance
office building) are owned by a large company whose product
is generally associated with the name of the building, whereas
they may rent office space to organizations not associated
with their particular type of business.
12
TRIP PURPOSE
Circle the number which explains the primary
purpose of each trip. For example, a truck is driven from the
owner's business "Home Base" to make a wholesale delivery "whole-
sale delivery"; from there to make another delivery "wholesale
delivery" from there to lunch "personal use"; from there the truck
is driven to the driver's home "personal use"; from thore back to
make another delivery "wholesale delivery"; from there to the
owner's business "home base".
If a truck driver normally keeps his employer's truck at his
home over night a trip from or to the truck driver's home
would be recorded by circling both home base and personal use on
on the appropriate side of the trip purpose column. If the owner
normally keeps the truck overnight at his residence a trip from
home to work would be recorded as "home base" to "personal use".
HOME BASE - CODE 1
This refers to the location at which the truck
is usually based. This may be the place of business out of which
the truck is operated, or the residence of the owner. In most
cases, this will be the location at which the truck is kept at
night.
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PERSONAL USE - CODE 2. This refers to non-commercial usages of
trucks by individuals, for work, shopping, social, recreational,
and other uses. Trips between home and work are included in
this category, although trips made in the course of work after
arrival will be given the particular purpose for which they were
made. Trips will be classified for "personal use" regardless of
whether the truck was owned by a business firm or by the indi-
vidual making the trip.
RETAIL DELIVERIES ... CODE 3
This includes trucks making stops
at homes to deliver milk, fuel, furniture, groceries, drugs,
and other items. The "home base" of trucks making such trips
will generally be a retail outlet, and most trips will be
destined to residences. The volume of goods delivered at
each stop will generally be small.
WHOLESALE DELIVERIES - CODE 4 This represents movement of
goods from wholesale distributors to retail outlets. All
types of commodities, including foodstuffs, produce, beverages,
tobacco products, and clothing, will be found under whole-
sale deliveries.
TRASH COLLECTION - CODE 5 This is self-explanatory. Both
publicly and privately owned trucks are engaged in this
activity.
MAIL AND EXPRESS - CODE 6 This includes both pickup and de-
livery of these items.
CONSTRUCTION - CODE 7
This includes delivery of men and
materials to construction of new buildings, highways, bridges,
etc. Excavation trucks, cement mixers, asphalt spreaders,
and contractor's trucks engaged in this activity.
MAINTENANCE AND REPAIRS - CODE
8
This differs from "construction"
in that work is being done on completed structures. Highway
repair vehicles, plumbers' and electricians' trucks, telephone
and power company trucks, and various types of service
vehicles are engaged in maintenance and repairs.
FURNITURE TRANSFER - CODE 9 This includes movements of house-
hold goods by moving vans. Trips of this nature generally
are made between two residences, although a few include
trips between a residence and a storage warehouse.
OTHER are CODE O. This is to be used only if the trip purpose
has no conceivable relationship with any of the purposes
described above. A brief explanation of the truck's trip
purpose must be included in the space provided or in the
"notes" column.
13.
. MIDPOINT TIME
Enter the mid-point time of each trip,
and circle AM or PM.
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14
COMMODITY Enter the type of commodity the truck is
hauling, such as fruit, vegetable, coal, furniture, concrete
pipe, sand, gasoline, garbage, electrical machinery, etc.
Enter "empty" if the truck is empty.
15. INTERVIEWERS' RECORD. This section of the interview form
is for the interviewers personal use, and should be utilized
to better organize your work. The interviewer should record
the name of the person interviewer and check if he was the
driver of the vehicle on the travel day. Also, the time and
date should be entered for each contact made at the interview
address.
The interviewer should affix his signature to each interview
form before it is returned to the office. By signing each
interview form, the interviewer certificathat the information
is correct and true to the best of his knowledge, remember,
it is the responsibility of the interviewer to obtain the
proper information for each interview.
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Wilbur Smith and Associates
000108
TI-1-62
TRUCK INTERVIEW INSTRUCTIONS
SUPPLEMENT II - JANUARY 4, 1962
16.
Origin: Truck stopping to pick up workers
Destination: Construction job site
Trip Purpose: From "others" #* "serve passengers" to
"construction"
17.
A truck is being repaired on the day of travel. Under
notes - enter "truck being repaired". ("Out of service",
"no trips", etc. is not sufficient)
18.
Origins or Destinations where truck is using the street or
sidewalk area in supplying a service, for example: tow-
truck picking up disabled car or truck dropping off nows-
papers.
Land Use: Miscellaneous service
19.
Truck stops at an address where more than one land use
exists, for example: an apartment house with several
stores (barber shop, tailor, drug store, etc.) Enter
that land use that required the trip to be made by the
truck. If the truck makes a delivery to the drug store
at the apartment house.
Land Use: Drug store
20.
Origin and Destination address should be complete with
Rd., Ave., St., etc. for example, Greenmount Ave., Park
Rd., Cooks Lane, etc.
21.
Truck has two (2) places of operation such as shop and
shop. warehouse, however the majority of trips are made from the
Shop is selected as "Home Base"
22. Truck belongs to a wholesale and retail business.
a. Deliveries to a residence
Trip Purpose: "Retail Delivery"
b. Deliveries to a manufacturer or a large organization
(e.g. Westinghouse, Bendix, etc.)
Trip Purpose: "Wholesale Delivery"
C. Deliveries to a business which resells the products,
as is, or uses the products in the services offered by
the business (e.g. auto repair garage)
Trip Purpose: "Wholesale Delivery"
d. Deliveries to business offices who consume the product
on the premises (e.g. lawyers office, engineering firm,
etc.)
Trip Purpose: Retail Delivery
e. All others, unable to determine in field.
Trip Purpose: "Others" ne "W/R Del"
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000101
23.
If address given for origin or destination is incomplete
or vague, clarify by consulting telephone directory,
post office publications, etc.
24.
A truck is parked, while not in use, at an address other
than the operators' (or owner"s) home or place of business,
such as an overnight parking lot or garage.
Trip Purpose: "Others" - "Parking Lot" or
"Others" - "Garage"
25.
Land Use entries should be specific enough to explain
the activity at an origin or destination.
26.
A truck is used for owners' transportation only, for
example, to and from work and has no direct connection
with the owner's occupation.
Business-Industry: None-Personal Use
A trip from owner's home to work
Trip Purpose: "Home Base" *** "Personal Use" to
"Personal Use"
27.
Origin and destination addresses both outside survey area.
No trip entry.
28.
No distinction is to be made between a walk trip and
actual truck trip. For example: truck parks at curb
and driver walks to four different addresses and makes
deliveries.
Last delivery address is the destination and group
trip number is four (4).
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December 29, 1961
TRUCK SURVEY
OFFICE PROCEDURE
Once the sampling has been completed the information must be
transferred from the sample listings to the interview forms. This information
completes the first three lines of the truck report except for the telephone
number. Envelopes and form letters are also prepared at this time and attached
to the interview form. Each of the four major political subdivisions in the
study area requires a separate filing arrangement.
FILING OF UNASSIGNED SAMPLES
The samples for Baltimore City are filed by census tract. Using the
census tract manual of 1960 the census tract number is entered on the dotted
line preceeding the sample number on the interview form. The interview form
and letter of introduction are then filed into the propor census tract.
Baltimore County samples are filed by postal zone or by community where
postal zones do not exist. The postal zone or community appears on part of
the address on the interview form. Postal zones and communities are not inter-
filed and so the two separate files are maintained. This is convenient for assign-
ment purposes.
The samples for Howard County are filed by community. The rural nature
of the county discouraged any further breakdown. Here too the community is
found as part of the address on the inte view form.
For Anne Arundel County the samples are divided into election districts
and then subdivided into communities within the election district.
This filing arrangement proved satisfactory for the assigning of samples
to the interviewers.
THE ASS "TING OF INTERVIEWS
Each .nterviewer is assigned an area in which he is to work. Most of
the
re comprised of census tracts, postal zones and communities.
Rev.
.le assigned areas is required approximately once a month provide
each
.ewer with adequate work.
Approximately fifty samples are pulled from the file and recorded for
000118
NARA Reference Copy
each interviewer prior to his coming into the office. An attempt is
made to keep an interviewer in one area until all samples in that area are completed.
When the interviewer receives the samples that "date out" is recorded. Form
72-961 is used for this record.
CHECKING OF INTERVIEWS
Each interviewer has a weekly appointment so he can return his completed
interviews and receive new work. At this time the reports are checked for comp-
leteness.
The reports are classified à complete, "M" or "I" as described on
page 118 of the "Manual of Procedures - Home Interview Traffic Study" published
by the Bureau of Public Roads in 1954. Following this the date in, interview
day, number of trips and classification are recorded. The interview day as
written on the form was taken to mean day of travel. The month of the year
and day of the week is recorded considering Sunday to be the first day of the
week A numerical listing of all samples (0001 to 9999) is maintained in which
the date out, date in and the interviewer's number is recorded on completion
of the report. The numberical list of samples is maintained on Form 112-681.
The reports returned by the interviewer are kept on a monthly basis.
At the end of the month the reports are checked against the record and then
filed into envelopes where they are kept in numberical order awaiting coding.
PHONE CHECKING
Every sample in the "I7 category plus those notated "used out of area"
from the "M" category are checked by telephone. After the call the results
are recorded in the "casuality control record". A separate record is maintained
for each interviewer. The report is then either returned to the interviewer
or filed according to classification.
At times it is necessary to check other types of reports. An excessive
number of reports returned with the notation "not in use" or "used only on
construction site may merit a phone check to verify the information.
FIELD CHECKING
Ten percent of the completed reports plus all of the "refusals" and those
that "could not be located" are field checked. Each interviewer is checked
weekly. A "quality" control record is maintained for field checks as well as
for phone checks on Form HTI-1061.
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MISCELLANEOUS REMARKS
A progress summary is maintained for each interviewer on a weekly basis;
this is used as one means of checking efficiency. Form H4-861A is maintained
for each interviewer. A report is prepared each week which shows the weeks work
for all the interviewers and is used for comparison purposes. The form is the
same as the progress summary except the "week ending" column is replaced by
the interviewer's name. Form H4-861B is used for this purpose.
Each week a progress report is made showing the weeks work plus the accumulated
totals.
Supplementary instructions to the original truck interview instructions
are written as required. Each interviewer receives a copy of these supplements.
Following are sample copies of the reports described in this report.
References is made on each sample copy as to which page of the report describes
its use.
000120
NARA Reference Copy
CODING
Home Interview Coding Procedures
Occupation & Industry Codes
Commodity Codes
Land Use Codes
Truck Coding Procedure
000121
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000109
Wilbur Smith & Associates
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
HOME INTERVIEW CODING PROCEDURES
Introduction
Application of the techniques which have become available as
a result of the development of electronic computers facilitiates
the statistical analysis of large quantities of information in a
relatively short time. Such methods have made data reduction
projects of the magnitude of this study feasible.
After the home interviews have been completed they are trans-
mitted to the coding section. The interview information cannot be
used until it has been translated into numerical codes for machine
processing. The translation of interview data is the subject of
these coding procedures.
To provide a method of control for the coding operation, a
step number has been assigned to each operation that must be
performed. This will insure completeness of coding and the
recording of the coder's signature in the code box on the outside
of the envelope establishes responsibility for the work performed
on the forms included within that envelope.
Special numerical code indices were developed for the
following coding steps:
Step
Index
1
Occupation and Industry
2
Land Use
6
Cross Index, 1961 Traffic zones and 1960
Census Tract Code
5,7,8,9,
10 & 11
Streets
7,8,9&11
Major Generators
The remaining numerical codes are shown in this procedure
with the coding instructions for each step.
1
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000110
WS&A
BMATS
Outline of Code Steps
Step 1
Occupation and Industry- - (Two single digit codes) Column G on
Dwelling Unit Interview Form and transfer this information to the
Trip Report form under Column O. Use Occupation and Industry
index developed for this project.
Step 2
Land Use-Columns S and T (Two Digit Code) on the Trip Report form.
Land use for Origin and Destination addresses outside the survey
area is not coded. Use land use index developed for this project.
Step 3
Starting and Arrival Time (Three Digit Code) Column V on Trip
Report Form.
Step 4
Month, Day, Season, D. U. Structure, Sex, Drivers Licenses,
First Mode of Travel, and Status of Drivers License
Step 5
Sub-Zone of Dwolling Unit- (Five Digit Code)
Step 6
Census Tract. (Six Digit Code) Use Cross Index prepared for this
project.
Step 7
Sub-zones of Work or School address (Five Digit Codes) which are
located under Column G, Household Information at the right side
of the Dwelling Unit Summary Form.
Step 8
Verification of Steps no. 5, 6 and 7. (100% of data)
Step 9
Origin and Destination Trip Report Form (Five Digit Code.)
Step 10
Parking Rate and Location of Parking is Column Z on the Trip
Report Form.
Step 11
Verification of Step No. 9 (100% of data)
Step 12
Passenger's Purpose on "serve passenger" trips and the ultimate
purpose of "change travel mode" trips.
Step 13
Verification-Spot check land use and origin and destination
addresses under Columns S and I on the Trip Report form. This
is to check logic of sub-zones considering trip purpose, time
of starting and arrival, and mode of travel.
Step 14
Vehicle Description - (Season C and D work only)
2
000123
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WS&A
BMATOGOIIL
CODING INSTRUCTIONS
Step No. 1
Occupation and Industry is coded for all members of the
interviewed family. Special school codes have been prepared.
There are twelve possible occupation codes and twelve industry
codes.
The occupation and industry codes are two single digit codes
under Column G on the Dwelling Unit Interview Form. They will be
coded in accordance with the Occupation and Industry Code Index
which was prepared for this project. This index was distributed
to the home interviewers with instructions to explain the OC-
cupation and industry in sufficient detail to allow the coder to
place the information within the proper categories.
Immediately following the coding of the occupa' on and
industry codes this information is to be transferred to the trip
report form under Column D, so that each trip can be related to
the occupation and industry code for the person making it.
Occupation and industry can be coded independently of other
coding operations.
3
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000112
WS&A
BMATS
CODING INSTRUCTIONS
Step No. 2
Land use is obtained for the origin and destination of each
trip in the home interview. The land use at each end of the trip,
such as residential, industrial, government etc., is recorded on
the Trip Report forms for each origin and destination. Land use
for origin or destination addresses outside the survey area are
not coded.
The land use code is a two digit code under Columns S and T
of the Trip Report Form. This will be coded in accordance with
the land use coding index which was prepared for this project.
The index includes detailed description of the land use codes as
well as examples which demonstrate the methods to be used in
determining the proper Codes.
Land use can be coded independently of other coding operations.
4.
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WS&A
BMATO 00113
CODING INSTRUCTIONS
Step No. 3
The starting and arrival time of each trip is recorded on
the trip report form.
Starting and arrival time will be coded in three digits
under Column V on the Trip Report.
The first two digits of the code represent the hour in the
twenty-four hour day, starting with the hour following midnight
as the zero hour and ending with the hour before midnight as the
twenty-third hour. This can be accomplished by adding twelve to
the P.M. hours as recorded on the Interview Form.
The last digit of the code represents the minutes within the
hour divided into six intervals of ten minutes each. This can be
accomplishes by using the first digit of the two digit number
which denotes the minutes in the standard method of denoting time.
CODING TIME:
Hour
Code
Hour
Code
12:00-12:59 A.M.
00
12:00-12:59 P.M.
12
1:00- 1:59
"
01
1:00- 1:59
11
13
2:0.0- 2:59
"
02
2:00- 2:59
11
14
3:00- 3:59
"
03
3:00- 3:59
N
15
4:00- 4:59
11
04
4:00- 4:59
If
16
5:00- 5:59
If
05
5:00- 5:59
et
17
6:00- 6:59
"
06
6:00- 6:59
"
18
7:00- 7:59
Il
07
7:00- 7:59
"
19
8:00- 8:59
II
08
8:00- 8:59
"
20
9:00- 9:59
"
09
9:00- 9:59
"
21
10:00-10:59
=
10
10:00-10:59
It
22.
11:00-11:59
11
11
11:00-11:59
"
23
MINUTES
CODE
0-9
0
10-19
1
20-29
2
30-39
3
40-49
4
50-59
5
Time can be coded independently of other coding operations.
5
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WS&A
000116
BMATS
CODING INSTRUCTIONS
Step No. 4
C./ Z MONTH
This item is located in the top right hand corner of the Dwelling
Unit Summary and should be coded in the box immediately following
card number. (The green printed number in the first code box at
the top of the form) The month should be transferred from item D....
"Day and Date of Travel" to the above mentioned code box using the
following system:
MONTH
CODE
January
1
February
2
March
3
April
4
May
5
June
6
July
7
August
8
September
9
October
0
November
X
December
Y
Col $
DAY
This item is located to the immediate right of the month code
box in the upper right hand corner of the Dwelling Unit Summary.
The day of travol should be transferred from item D "Day and Date
system, of Travel" to the required code box using the following coding
DAY
CODE
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
SEASON
This item is located to the immediate right of the day code
box in the upper right hand corner of the Dwelling Unit Summary.
6
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000115
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BMATS
Step No. 4
Page 2
The season is determined from the letter following the route
number. The season is coded in the following manner:
SEASON
CODE
A
1
E
2
C
3
D
4
If a letter does not appear with the Route Number, the
season is determined from the sample number which is located in
the code boxes below the route number. If the last number in the
sample number code box is odd the season is coded as three. If
the number is even the season is coded as four.
D. U. STRUCTURE
This item is coded on the fifth line from the top in the upper
right hand side of the Dwolling Unit Summary. The proper code
number for this entry has been circled and is loanted to the left
of the D. U. Structure coding entry. The circled number is trans-
ferred from this location to the above mentioned coding box.
SEX
This item is located under G, "Household Information" on the
Dwelling Unit Summary. Each member of the household is listed as
Job
M (Male) or F (Female) which is to be transformed to the following
code numbers:
SEX
CODE Makale (code for Time job 20d for Student
M (Male)
1
F (Female)
2
If any member of the household has a second job or if a
student has a part-time job at which he is employed more than
20 hours per week, this fact will be deonted by a second entry,
using the following codes in place of the standard sex codes
above.
DESCRIPTION
CODE
Second Job-Male
3
Second Job-Female
4
Part-Time job-Student-Male
5
Part-Time job-Student-Female
6
Change the sex code under Column R on the Trip Report Form
to correspond to the above instruction.
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NARA Reference Copy
000128
000116
WS&A
BMATS
Step No. 4
Page 3
DRIVER'S LICENSE
Driver's License is to the immediate right of sex and is coded
as follows:
DRIVER'S LICENSE
CODE
Yes
1
No
2
UA (underage)
3
FIRST MODE OF TRAVEL
This item is to the immediate right of Driver's License and
is coded as follows:
FIRST MODE OF TRAVEL
CODE
NO
0
AD (Auto Driver)
1
AP (Auto Passenger)
2
PB (Public Bus or Transit)
w
TD 02 TP (Truck Driver or
Truck Passenger)
4
SB (School Bus)
5
TX (Taxi Driver or
Passenger)
6
W (Walk)
7
WH (Work at Home)
8
V or S (Vacation or sickleave)
9
STATUS OF DRIVER'S LICENSES
This item is located at the very bottom of the Dwelling Unit
Summary and is determined by totaling the number of persons
answering yes, no, and under age to the driver's license question.
The total number of people having driver's licenses will be entered.
in the first code box. The total number that answer no to the
question will be entered in the second code box. The total number
of persons underage will be ontered in the third code box. Include
only the first time that a person is listed in the summary. Do not
include a person the second time he is listed for a second job or
a student's part time job. Include only listings with a sex code
of 1 or 2.
Step No. 4 can be coded independently of other coding
operations.
000129
8
NARA Reference Copy
WS&A
000117
BMATS
CODING INSTRUCTIONS
Step No. 5
Subzone of Redisence
This item is located in the upper right hand corner of the
Dwelling Unit Summary, immediately following (underneath) sample
number. The subzone number is a five digit code and should be
entered in the first five code boxes of the spaces provided for
D. U. Subzone Number. The coder will find the proper subzone
number corresponding to the address shown on line A of the inter-
view form in the street index. The coding of this item should be
accomplished in the following manner:
1. Look up the street name in the alphebotical street index,
making sure the street index contains the exact name that
is given on Line 4 of the Dwelling Unit Summary.
2. If the index contains only one street with the name you
are looking for, you should than determine the range of
house numbers that contains the exact address. The five
digit code to the right of the proper house number range
should then be transferred to the spaces provided on the
Dwelling Unit Summary. After each series of house
numbers the following abbreviations are used:
a) od Ward This means that the odd numbered houses within
the proceeding range of numbers are in the subzone
following the abbreviations od.
b) ev - This means that the even numbered houses within
the preceeding range of numbers are in the subzone
following the abbreviation ev.
c) bt - This means that both even and odd numbered
houses with the proceeding range of numbers are in
the subzone following the abbreviation bt.
If the abbreviation al appears, all houses on the
street (regardless of the house number) should be
coded to the subzone following the abbreviation al.
000130
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NARA Reference Copy
000118
WS&A
BMATS
Step No. 5
Page 2
3. If the street appears more than one time the community
in which the street is located must be determined. The
coder should first determine all the communities that
contain a street name identical to the one in question.
(the community name appears immediately following the
street name) It will then be necessary to refer to the
list of communities and route numbers, in order to
select the community that contains the route number
shown in the upper right corner of the Dwelling Unit
Summary. When the community has been determined the
coder will then select the subzone number corresponding
to the proper street and community.
If any questions arise as to the proper subzone code, the
coding supervisor should be contacted for the final decision.
Under no circumstances should the coder assume responsibility for
determining questionable subzone codes.
Subzone or residence can be coded independently of other
coding operations.
000131
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NARA Reference Copy
000119
WS&A
BMATS
CODING INSTRUCTIONS
Step No. 6
The census tract is a six digit code which locates the sub-
zone of each dwelling unit interview within its correct census
tract. Use the cross index which has been prepared for this project.
This cross index corrolates the 1961 traffic zones with the
enumeration districts, census tracts, and 1945 zones.
Coding of Subzone of Residence (Step No. 5) must be done prior
to coding of the census tract.
000132
NARA Reference Copy
11
WS&A
BMAT 900120
CODING INSTRUCTIONS
Step No. 7
The Subzone of Work or School address is a five digit code
which is located under Column G at the right on the Dwelling
Unit Interview Form. The five digit subzone number should be
coded for each person number.
Instructions concerning the determination of the proper sub-
zone are included in the Coding Instructions for Step No. 5. A
classified Major Generator Index listing major traffic generators
alphabetically by classification is available.
Subzone of work or school address can be coded independently
of other coding operations.
12
000133
NARA Reference Copy
000121
WS&A
BMATS
CODING INSTRUCTIONS
Step No. 8
Verification of Steps No. 5, 6, 7. Verify 100% of the coding
done in these steps. No person is to verify any work they have
done.
13
000134
NARA Reference Copy
WS&A
000122
BMATS
CODING INSTRUCTIONS
Step No. 9
This step consists of coding the subzone of both the origin
and destination of each trip on the Internal Trip Report Form. An
origin or destination of home is coded by simply placing an X in
the first box of the five digit subzone code. This will cause the
subsone number of the interview address which appears on the
Dwelling Unit Summary to be entered at this location with a land
use code of eleven for residential land use. If a Y is entered in
the first box of the subzone code the proper subzone will be
entered with a land use of twelve for Hotel or Motel land use.
If the origin of trip number N+1 is the same as the des-
tination of trip number N nothing need be entered for either the
subzone or the land use of the origin of trip number N+1. In
this case the subzone and land use of the destination of trip
number N will be entered as the subzone and land use of the
origin of the trip number N+1.
The origins and destinations can be coded independently of
other coding operations. However, it is recommended that Step
No. 7 be done first as many of these locations will be origins
or destinations of trips made by the members of the family.
14
000135
NARA Reference Copy
WS&A
600123
BMATS
CODING INSTRUCTIONS
Step No. 10
Code Step 10 will include the coding of parking rate in
addition to location of parking for all central business district
auto driver trips. The following procedures will be followed in
coding Step 10:
1. Parking rate - Two digits have been set aside for the
coding of parking rate. The first digit will be coded with
the circled information in column Z (1. Hour, 2. Day,
3. Month, 4. Meter, 5. Free) In the event that parking
is reported by the week, enter a code 6 and circle below
the 5 in Column Z. The coding in the second column will
be dependent upon the item circled in the first column.
The following codes will be used:
With Code 1 (Hour) With Code 2 (Day) With Code 3 (Month)
0-10 cents
0-35 cents
0 $ 5.00 or less
1-15 cents
1-50 cents
1
6.00 - 8.00
2-20 cents
2-60 cents
2
9.00-10.00
3-25 conts
3-75 cents
3 11.00-12.00
4-30 cents
$1.00
4 13.00-15.00
5-35 cents
5- 1.25
5 16.00-20.00
6-40 cents
6- 1.50
6 21.00-25.00
7-45 cents
7- over $1.50
7 over $25.00
8-50 cents & over
9 unknown
9 unknown
9- unknown
With Code 4 (Meter) With Code 5 (Free) With Code 6 (Week)
O- 1 cents
0 for all cases
-$2.00 or less
1- 5 cents
1- 2.50
2-10 cents
2- 3.00
3-15 cents
3- 3.50
4-20 cents
4- 4.00
5-25 cents
5- 5.00
6- over 25%
6- over $5.00
9- unknown
The entry of the second digit for the coding above will
be made in red pencil and circled immediately above the
boxes for location of parking in the central business
district. At the time that this number is entered the
first digit code (hour, day, month, meter, free) should
be written clearly in red also.
15
NARA Reference Copy
000136
000124
WS&A
BMATS
Step No. 10
Page 2
2. Location of parking in the central business district will
be coded with a standard five digit code as detailed in
our street index.
Location of parking lots can be checked against a list
provided by "Downtown Park and Shop" which furnishes
addresses for about 100 parking facilities in downtown
Baltimore.
Reference should also be made to the detailed trip
destination as recorded in the trip report and to such
other sourches as the criss-cross telephone directory,
city directory and to our detail map of the downtown
area.
Step No. 10 can be coded independently of other coding
operations. However the prior completion of Step. No. 9
will facilitate this operation by aiding the coder in
the determination of parking location.
16
000137
NARA Reference Copy
000125
WS&A
BMATS
CODING INSTRUCTIONS
Step No. 11
Verification of Step No. 9. Verify 100% of the coding done
in this step. No pe son is to verify any work they have done.
000138
NARA Reference Copy
17
WS&A
BMATS
000126
CODING INSTRUCTIONS
Step No. 12
Code Step 12 will include the coding of the passenger's
purpose on "serve passenger" trips and the ultimate purpose of
"change travel mode" trips.
1. Passenger's Purpose
For all "serve passenger" trips the interviewers have
circled code number 9 "serve passenger" and checked
the passongers purpose. In the first box in the "special"
column at the right edge of the trip report form we will
enter the number of the checked passengor's purpose for
all serve passenger trips. For example if the interview
shows No. 9 "serve passenger" circled and "work" checked,
we will enter a 1 in the first code box in the "special"
column. If "School" is checked with "serve passenger" a
4 will be entored in the appropriate coñe box. In no
case should the purpose "home" be coded as passenger'
purpose.
2. Change Travel Modo
For all "change travel mode" trips enter the ultimate trip
purpose of the two trips, or in effoot the "to" purpose
of the trip following the "change travel mode" trip in
the first code box in the "special" column of the trip
report form. For example, if a man leaves home in his
car and drives to a shopping center where he leaves his
car and boards a transit bus for the trip to work, his
trip from home to shopping center shall be coded as
"home" to "change travel mode" and his trip from shopping
center to work as "change travel mode" to "work". In this
case a "ode" should be entered in the first code box in
the special column and the second trip would have a code
"0" for "home" entered in the first code box in the
"special trip" column.
Step No. 12 can be coded independtly of other operations.
18
000139
NARA Reference Copy
000187
WS&A
BMATS
CODING INSTRUCTIONS
Step No. 13
This step is a final check of the entire coding procedure to
insure accuracy and completeness. In particular the coder should
check the subzone coding for logic, such as location of school or
shopping trips in relation to travel time and home address sub-
zone.
The interview form should be checked to insure entries in
all appropriate code boxes. Correlation of origin and destination
address subzones on the internal trip report should be made with
the work and school address subzones in the dwelling unit interview
information. Included in this step is a 10% verification of all
subzones appearing on the interview form. A complete check of
code step No. 14 is the final part of this step.
Step No. 13 can not be done until all other code steps have
been completed.
000140
19
NARA Reference Copy
WS&A
BMAT 100128
CODING INSTRUCTIONS
Step No. 14
Vehicle description will be coded in three digits for all
cars listed in the "Administrative Record" box under "Notes" at
the left side of the Dwelling Unit Summary form. The code numbers
will be entered on the form below line "N" at the bottom of the
page. The numbers entered should be kept as far to the right as
possible and if there is one car available to a given dwelling
unit the code for that car should appear immodiately under the
three code boxes on line "N". If there is more than one car the
first car should be listed first and the last car should be listed
under the boxes on line "N".
The three code digits to be entered will represent make, model,
and year in that order.
The code for vehicle make or manufacturer, will be obtained
from the attached list of "Passonger Car Manufacturer Codes". These
codes are based upon the following categories:
to
Code
Description
1
Standard American molels, up to
$3,000 initial cost and with wheel
base of 116 inches or greater
2
Standard American models, of $3,000
to $5,000 initial cost and wheel base
of 116 inches or greator
3.
Standard American and foreign cars of
high initial cost, over $5,000 and
with wheel base of 116 inches or
greater
4
Sports cars of standard or near
standard size
5.
Compact and small American cars with
wheel base of 115 inches or less
6
Small foreign cars with wheel base
of 115 inches or less
Any makes not listed should be referred to the supervisor for
clarification.
20
000141
NARA Reference Copy
Wilbur Smith and Associates
Page 1 of 4
000129
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
OCCUPATION AND INDUSTRY CODES
HOME INTERVIEW
Occupation: The Home Interviewer should explain the occupation of an
employed person in sufficient detail to show: the type of duty
performed and responsibilities; amount of specialized training or
skills required; and the remuneration received.
Code O - Professional and semi-professional
Medical - doctors, surgeons, dentists, etc.
Nurses and social welfare workers
Osteopaths, chiropractors, etc.
Veterinarians
Educational and scientific - teachers, scientists and pro-
fessional research workors
Religious - clergymen, etc.
Legal - lawyers, judges, etc.
Architects, engineers, etc. - civil, electrical, mechanical,
marine, aeronautical engineers, airplane pilots, etc.
Entertainment - artists, authors, journalists, photographers,
musicians, etc.
Designers, draftsmon, surveyors, technical aids, accountants,
embalmers, morticians and other professional and semi-
professional workers.
Code 1 - Proprietors. managers and officials
WC
Retail trade except eating and drinking places
Hotels, lodging houses, onting and drinking places
Finance, insurance and real estate
Manufacturing and processing establishments
Farmers and farm managers
Ship captains, railroad conductors and other transportation
and communication officials
Postmasters
BC
Code 2 - Store and office clerks, salesmen (excl. traveling) etc.
Baggagemen, express messengers, and railway mail clerks
Bookkeepers, accountants, cashiers, and ticket agents
Mail carriers
Messengers except express
Office, shipping and receiving clerks, typists, stenograph-
ers, and secretaries
Telephone and telegraph operators
Retail trade clerks
Newsboys, etc.
Agents and brokers
000142
NARA Reference Copy
PAPERA
Page 2 of 4
Code 3 - Traveling salesmen, agents, etc.
Traveling salesmen
Canvassers, hucksters, and pedlers
Traveling agents and representatives other than sales
Code 4 - Craftsmen, foremen, skilled laborers, etc.
Craftsmen and skilled laborers, includes bakers, black-
smiths, boilermakers, painters, cabinet makers and pattern
makers, carpenters, compositors and typesetters,
electricians, machinists, masons, mechanics, metal
molders, painters (construction), plasterers and coment
finishers, plumbers and steam fitters, printing craftsmen,
metal rollers, roofers, shocmakers, (not in factory),
structural steel workers, tailors and furriers, etc.
Locomotive engineers and firemen
Stationary engineers and firemen
Foreman, supervisors, straw-boses
Inspectors
Code 5 - Operatives and semi-skilled workers
B
Apprentices
Vehicle operators, includes motormen (railway, mine,
factory, etc.) conductors of street railways, bus
drivers, chauffeurs, taxi drivers, etc.
Stationary machino operators
Attendants at filling stations, garages, tire and battery
shops, parking lots and airports, and those serving the
general public
Communication and power linemon and servicemen
Miners, and related workers not otherwise specified
Sailors and deckhands (except Navy and Coast Guard)
Brakemen and switchmen, railroad
Dressmakers, seamstresses, and laundry operatives (exsept
private family), dry cleaning plant operatives
Code 6 - Laborers and unskilled workers
BC
Lumbermen, raftsmen and woodchoppers
Longshoremen and stevedores
Fishermen and oystermen
Construction laborers, common laborers
Code 7 - Protective Services
CC
BE
Commissioned officers of the military forces
Enlisted men, draftees, and non-commissioned officers of
the military forces
Civilian defense lookouts (airplane and fire) wardens, etc.
full-time employees only
Members of fire departments
Policemen, sheriffs, marshals, guards, game warden; etc.
Watchmen and police, privately employed
Private dectives
000143
NARA Reference Copy
Page 3 of 4
000131
Code 8 -
Personal service workers
Barbers and beauticians
Bellboys, porters, etc.
Bartenders and waiters
B
Bootblacks
Boarding house and lodging house workers
Cooks
Elevator operators
Servants in private homes
Code 9 -
Miscellaneous - not otherwise classified
Y
Unemployed yet able to work but without indication of any
regular profession, trade or special skill
Nongainfully employed workers (includes housewives and
other unpaid home workers)
Retired workers (includes persons permanently incapacitat-
ed for any gainful employment)
Occupation not reperted
Code Y -
Occupation Not Reported For Employed Persons
Industry: The Home Interviewer should explain the type of business
in which a person works in sufficient detail to show in which of the
following industry categories he is employed.
INDUSTRY CODFS
Code O -
Agriculture, forestry (except logging)and fishing)
Mining and mineral extraction
Includes crude petroleum and natural gas production.
Code 1 -
Retail trade - restaurants, gas stations, night clubs,
etc.
Code 2 -
Construction and related maintenance
Includes such allied work as electrical wiring, heating
and ventilating, insulating, masonry, paperhanging,
plumbing, roofing, sheet metal, stone cutting, structural
and ornamental metal, tile setting, etc.
Code 3 -
Manufacturing and processing
Daires
Includes bakeries, logging and milling operations,
petroleum refining and the manufacture of coal by-products,
printing, publishing, etc., and allied repair services.
Code 4 -
Transportation, communication, and other public utilities
Includes employees of railroads; railroad repair shops
operated on contract; the postal service; railway express
service; telegraph, telephone, and cable lines; steamship
lines, barge lines, etc.; contract and common carrier
hauling; taxicabs. Also includes air lines and airport.
NARA Reference Copy
000144
Page 4 of 4
000132
Code 5 -
Wholesale trade including finance, insurance, and
real estate
Includes dairios, banks, brokerage houses, garages, etc.
Code 6 -
Personal service
Includes valet services, laundries, cleaning and dyeing
establishments, barber and beauty shops, domestic work
hospitals, hotels, rooming houses, shoe repair shops.
Code 7 -
Amusement, recreation, and related services
Includes amusement parks, bowling alleys, pool parlors,
race tracks, sightseeing, theaters and motion picture
production, entertainment in general, etc.
Code 8 -
Professional and related services
-Includes establishments such as educational, religious,
medical and social welfare organizations; funeral homes;
law firms; private architects and engineers; and those
establishwonts performing research and other technical
work; etc.
Code 9 -
Government
Comprises all g ernment employees - Federal, State,
County, Municipal - including armed forces and other
protective forces; except the Postal Service employees
and employees of government-owned utilities.
Code Y
- Industry not reported for Employed and Unewployed Persons
Code 9X - Housewives, retired persons, kindergarten and pre-school
age children.
Special School Codes:
XX -
1st grade thru 6th grade students
XY -
7th grade thru 12th grade students
YX -
College students - Business schools
NARA Reference Copy
000145
Wilbur Smith and Associates
12-61
000133
COMMODITY CODING SCHEDULE
The following schedule for coding "commodity" may be used in
place of the "Freight Commodity Statistics Classification" to the
extent possible. Items of local importance not listed in this schedule
may be segregated and given codes in the 800 series to the extent
desirable in each metropolitan area. During coding, reference to
the complete commodity classification pamphlet (1954 edition) should
be made as needed. The abbreviation "N.O.S." in the following schedule
means not otherwise specified.
COMMODITY
CODE
COMMODITY
CODE
Acids
531
Chinaware
701
Agricultural products, N.O.S. 199
Cigars
777
Airplane parts
625
Cigarettes
777
Alcohol
535
Cinders
797
Animals & animal products, NOS 299
Cinder blocks
639
Apples
049
Citrus fruits, NOS
059
Ashes, waste materials
797
Cleaning & dyeing
709
Asphalt
339
Clothing
729
Automobiles
613
Coal
301
Automotive supplies, NOS
623
Coffee
075
Bakery products
763
Coke
307
Bakers' supplies
763
Compressed gaces
509
Bananas
051
Cement blocks
639
Barley & rye
009
Construction machinery
595
Baskets & boxes
785
Containers
785
Batteries
685
Copper, brass, aluminum pro-
Beer
749
ducts
561
Berries, fresh
053
Corn
003
Beverages, soft
751
Cotton, cloth & fabrics
727
Bituminous road material
503
Cotton, bales
033
Bricks, building blocks
639
Cottonseed
037
Burlap
723
Cream & milk
233
Butter
229
Crates
785
Building materials, NOS
679
Dairy products, NOS
233
Cabbage
077
Distilled water
751
Candy
761
Drug store supplies
553
Canned goods
763
Dry Goods
729
Cans
785
Earth, road contracting
399
Cantaloupes
055
Eggs
227
Cattle
203
Electric motors
685
Celery
079
Electric ser. & supplies
685
Cement
635
Empty trucks
000
Cereal foods
021
Explosives
631
Cheese
231
Express, air, railway
900
Chemicals, NOS
527
Extracts
763
Chicken feed
773
Fats, grease, & bones
299
Feed
773
NARA Reference Copy
000146
000174
COMMODITY CODES (CONTINUED)
COMMODITY
CODE
COMMODITY
CODE
Fertilizers
539
Lemons
059
Film
799
Lettuce
081
Fish
243
Liquors
745
Fire protection devices
799
Lime
645
Flaxseed
105
Logs
401
Florist, flowers
199
Luggage
739
Flour
015
Lumber, shingles, lath
411
Food, canned & fresh
763
Machinery & parts
595
Forest products, NOS
499
Magazinos
667
Forgings
583
Malt, NOS
103
Freight, railway
900
Mixed merchandise
999
Fruits, NOS
069
Manure
539
Fuel oil
503
Margarine
221
Fuel & heat installations
687
Matches
771
Furniture, NOS
715
Mattresses
715
Garbage
797
Meal, corn
017
Gas, service & supplies
685
Meats
215
Gasoline
501
Meat products, NOS
219
Glass & glassware
695
Melons, NOS
055
Grapes
057
Merchandise, mixed
999
Grain, NOS
013
Metal products
583
Gravel
32?
Milk and cream
233
Grease, lubricating
505
Mill products, NOS
023
Grocery delivery, mixed
763
Mining products, NOS
399
Hardware, NOS
691
Miscellanoous
799
Hay
025
Neon Signs
685
Hides, skins, & pelts
239
Newspapers, delivery
667
Hogs
211
Newsprint paper
657
Horses & mules
201
Nursery, shrubs, trees
199
Hotel supplies
901
Nuts
199
House furnishings
715
Oats
007
Household utensils
705
Oils, lubricating
505
Huckster, produce
763
Onions
083
Ice
753
Oranges & grapefruit
061
Ice boxes
707
Ores
319
Ice-cream
233
Packing. house prod. NOS
219
Insulating materials
675
Packing material
799
Iron ore
309
Paints, putty, varnish
547
Iron, scrap
789
Paper & paper articles, NOS665
Iron & steel products
583
Paper collection
655
Junk
797
Paperboard, fibreboard
669
Laundry
709
Peaches
063
Laundry equipment
709
Pears
065
Leather, NOS
241
Peanuts
097
000147
NARA Reference Copy
COMMODITY CODES (CONTINUED)
000775
COMMODITY
CODE
COMMODITY
CODE
Petroleum, crude
337
Petroleum products, NOS
Street lighting, service
507
Photographers' supplies
& supplies
685
799
Sugar
Pickles & sauerkraut
759
763
Plaster
Sugar beets
101
647
Swine
Plastics
211
549
Syrup & molasses
Plumbing & heating materials
755
687
Sulphur
Poster advertising
345
667
Tea
Posts, poles, & piling
763
403
Potatoes
Tires & tire repairs
627
085
Tobacco, unmanufactured
Potato chips & pretzels
029
763
Tobacco, manufactured
Poultry, live
777
223
Tomatoes
Poultry, dressed
087
225
Tools & workers
Preserves & jellies
719
763
Top soil
Pulpwood
399
409
Tow truck service
Radios, repairs & parts
623
685
Tractors
Bailroad supplies
617
607
Trash
Refrigerators & service
797
707
Rice
Turpentine
417
011
Road oils
Upholstery
715
503
Varnish & stains
Rubber goods, NOS
547
525
Rubbish
Vegetables, NOS
089
797
Vegetable oils
Rugs
517
713
Salt
Nall paper
665
341
Sand
Waste paper & rags
655
327
Sawdust
Waste materials, other
797
499
Watermelons
Scrap metals
067
797
Scrap paper & rags
Wholesale delivery, foods 763
655
Wood, fuel
Sea food
405
243
Woodenware
Seed & farm supplies, NOS
703
107
Workers & tools
Sewer pipo & drain tile
719
649
Wool
Sheep
237
207
Wheat
Shoes
001
737
Signs & lighting
685
Slag
793
Soap & washing compound
769
Sod
199
Soybeans
043
Stationery
665
Steel products
583
Stone
329
Store fixtures
715
Stoves & parts
711
Straw
027
000148
NARA Reference Copy
Wilbur Smith & Associates
Page 1 of 3
000136
MA 6-61
1961
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
LAND USE CODES
CODE
LAND USE DESCRIPTION
Agriculture, Forestry. and Fisheries
01
04
Forestry Agriculture (Exclude Forest Preserves -- Code 90)
05
Fisheries
06
Construction Projects - Building
07
Construction Projects - Streets
Residential
11
All Residential
Manufacturing, Durable
20
Lumber and Wood Products, Except Furniture
21
Furniture and Fixtures
22
Stone, Clay, and Glass Products
23
Primary Metal Industries
24
Fabricated Metal Products
25
Machinery, Except Electrical
26
Mectrical Machinery, Equipment, and Supplies
27
Transportation Equipment
28
Professional and Photographic Equipment, and Watches
29
Miscellaneous Manufacturing Industries
Manufacturing, Non-Durable
30
Food and Kindred Products
31
Tobacco Manufacturers
32
Textile Mill Products
33
Apparel and Other Fabricated Textile Products
34
Paper and Allied Products
35
Printing, Publishing, and Allied Industries
36
Chemicals and Allied Products
37
Petroleum and Coal Products
38
Rubber Products
39
Leather and Leather Products
3X
Manufacturing -- Product Unknown
Transportation, Communication, Public Utilities, and Other
Industrial Non-Manufacturing
40
Railroads (Other than Local and Interurban)
41
Local and Interurban Mass Transportation
42
Trucking
43
Warehousing
44
Air Transportation
45
Water Transportation
NARA Reference Copy
000149
Page 2 of 3
CODE
LAND USE DESCRIPTION
000137
46
Highway Transportation
47
Utilities and Communication
48
Mining
49
Other Non-Manufacturing Industrial
Retail
50
Food and Drugs
51
Eating and Drinking Places
52
Genoral Merchandise Group
53
Apparel and Accessories
54
Furniture, House Furnishing, and Household Appliances
55
Motor Vehicles and Accessories
56
Gasoline Service Stations
57
Lumbor, Building Naterials, Hardware, and- Farm Equipment Dealers
58
Liquor
59
Miscellaneous Retail Stores
5X
Retail Store -- Unknown
Service
60
Finance, Insurance, and Roal Estate
61
Personal Services
62
Miscellaneous Business Services
63
Automobile Repair Services and Garages
64
Miscellaneous Repair Services
65
Indoor Amusoment and Recreation Services
66
Medical and Health Services
67
Legal Services
68
Office Buildings N. E.C.
69
Miscellancous Services
6X
Services -- Unknown
Wholesale Trade and Contracting
70
Wholesale Distributors with Storage Facilities
71
Wholesale Food Dealers and Jobbers
72
Salvage Firms and Offices
73
Other Wholesalers
74
Building Construction and Special Trade Contractors
75
General Contractors Other Than Building Construction
76
Vacant and Temporary Commercial Building
79
O ther Commercial N.T.C.
Public and Quasi-Public Buildings
80
Postal Services.
81
Military Services
82
Other Federal Administration
83
State, County, City or Local Administration
84
Educational Services - Schools
85
Museums and Art. Galleries
86
Churches
87
Hospitals, Sanatori and Mental Institutions
88
Non-Profit Membership Organization
89
Other N. E.C.
000150
NARA Reference Copy
Page 3 of 3
000138
CODE
LAND UST I DESCRIPTION
Public and Quasi-Public Open Space
90
Public Parks and Forest Preserves
91
Golf Courses
92
Swimming Pools
93
Botanical and Zoological Gardens
94
Race Tracks and Stadia
95
Outdoor Amusement N. S.C.
96
Joy or Pleasure Rides
97
Non-Usable Land -- Flood Control, etc.
98
Other Open Space N. E.C.
99
Bus Stop, Streetcar Stop, Subway Station, Elevated Station,
Taxi Stand, or Automobile Pick Up Point
XX
Land Use Information ilot Obtained
NARA Reference Copy
000151
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
000139
TRUCK SURVEY
CODING PROCEDURE
Work
Code
Item
No. of
Sequence
Step
Items
No.
Per Step
12
Code: :
Home Base-0 & D
1
3
13
Verify: Step 12 100%
1
C
?
Code:
Address-0 & D
1
D
8
Verify: 100% of Stop 7
1
[2]
3
Code:
Grouped Trips
Verify: Trip Purpose, Trip No. & Grp. Trips
4
4
Chock & Code: Line 8
2
G
1
Code:
Lines 1, 3, 4, 5, & 7
5
H
2
Code:
Industry & Business
I
I
14
Check:
For Completness, Lines 1 thru 8 1
J
5
Code:
Land Use O 3: D
1
K
6
Verify:
5%-10% of Step 5
1
L
9
Code:
Mid-point Time
1
10
Code:
Commodity
1
N
11
Check:
(1) "No Trip" Reports
(2) For Completness Col 9 thru 14
2
000152
NARA Reference Copy
000140
TRUCK INTERVIEW CODING INSTRUCTIONS
Sequence
And
Step No
G-1
(1) Month & Day - Line 1 - Two (2) Digit Code
Month
Code No.
Month
Code No.
Jan
1
July
7
Feb
2
Aug
8
Mar
3
Sept
9
Apr
4
Oct
0
May
6
an
5
Nov
X
June
Dec
Y
Day
Code No.
Mon
2
Tues
3
Wed
4
Thur
5
Fri
6
Record Month in 1st box and day in 2nd box
(2) Year Mfr. - Line 3-Two (2) Digit Code
Code last two digits of year of manufacture
Year of Mfg Code
1961
61
(3) Truck type - Line 4 - Two (2) Digit Code
The circled number, adjacent to description, is the code
number to be entered.
A "O" is to procede one digit numbers, for example "3" is
enter as "03"
(4) Rez. Gross Weight (CWT) - Line 5-Three (3) Digit Code.
Code entries to nearest 100 pounds
For Example
Reg Gross Wt.
Code No.
10,000 lbs
100
17,100 lbs
171
35,000 lbs
350
000153
NARA Reference Copy
TRUCK SURVEY CODING PROCEDURE (CONT)
000141
(2)
(5) Estimated Days Mileage in survey area-Line 7 Three (3)
Digit Code. Code to nearest mile
Mileage
Code
6 mi
006
8/1 mi
009
75 mi
075 (round off fraction of Mi.)
150 mi
150
H-2
Industry & Business-Line 6 Three (3) Digit Code
Code as per "Industry-Business" list. First digit
represents "industry" and other two columns represent "business"
E-3
(1) No. of Grouped Trips-Columm 11-one (1) Digit Code
Code all blank boxes (lower right hand corner-single box)
This box has been previously. coded if entry was
greater than one.
Verify the following by circling with red pencil
(2) Vorify: Trip Number Under Column 9
(3)
Verify: No of Grouped Trips greater than one (1)
under Column 11
(4) Verify:
Trip Purpose-Column 12. Two (2) entries
required for each trip
F-4
(1) Check:
Line # 8 total
Line # 8 total number of stops or trips in
area ... = Sum of "No. of Grouped Trips" under
Column 11
Note:
Majority of Group Trip entries will have no
numbers greater than one (1); these report
totals can be checked immediately.
Reports which cannot be added Simply are to
be checked on adding machine.
(2) Code:
Total No of stops/Trips in Survey Area
Line 8 -2Wo (2) Digit Code. Note only 2
boxes available for code number; for 3
Digit Code (100 trips or greater) draw in
an extra box.
Code number used to be same as shown except
entries from 1 to 9 inclusive will be
prefixed with a zero.
Stops/Trips
Code
4
04
a
08
10
100
146
146
000154
NARA Reference Copy
TRUCK SURVEY CODING PROCEDURE (CONT)
(3)
J-5
Land Use - Origin & Destination-Columns 10 & 11. Two (2)
Digit code to be used as per land use code list for all
locations inside survey area. When the origin of a trip
is the same as the destination of the preceeding trip,
usually indicated by a diagonal arrow, then coding
land use of origin is not necessary.
K-6
Verification Check: 5%-10% of Step 5 Verify 10% of the
trips on 50% of the interview, That is every tenth trip
stating with trip number 2 on every other interview.
C-7
Address (Subzone) - Origin and Destination-Five (5) digit
code-Columns 10 and 11
All addresses inside survey area are in the following
manuals:
(a) "Street Code Index" alphabetical listing of all
streets with subzone numbers thru which they pass.
(b) "Major Generator Index' categorically listing
larger building, department stores, churches,
major industries and other well known places and
the respective zones in which they are located.
All addresses located outside the survey area will
be coded "99999" for origin or destination. There-
for "9's" indicates a trip which extends beyond
the cordon line. When the origin of a trip is
the same as the destination of the proceeding trip,
(usually indicated by diagonal arrow) then coding
of the trip is not necessary.
D-8
Varification Check 100% of step 7
Each address coded in step 7 must be verified by checking
the coded address with the proper source. Do not verify
coded home base addresses which have been circled with
red pencil.
L-9
Mid-Point Time (Sixths of an hour) Column 13-Three (3)
Digit Code. Three coding boxes are provided; first
two (2) for coding the hour figures and remaining one
for minutes. Hours of the day are numbered consecutively
O to 23, for example:
Time
Code
Time
Code
12 midnight
00
1 p.m.
13
Note: Code for any
1. a. m.
01
3 p.m.
15
hours after 12 noon
11 a.m.
11
6 p.m.
18
and before 12 mdnt
12 noon
12
11 p.m.
23
are obtained by adding
12 to the stated time.
000155
NARA Reference Copy
TRUCK SURVEY CODING PROCEDURE (CONT)
000143
(4)
L-9
Minutes require one-digit code thru use of 10
(cont)
minute intervals of time (1/6 or sixths of an
hour)
For Example
Minutes
Code
Minutes
Code
Note: Code
0-9
0
30-39
3
can be obtained
10-19
1
40-49
4
by merely
20-29
2
50-59
5
dropping the
last digit of
the minute
figure.
Example of minute-hour coding
Time
Code
Time
Code
1:19 a.m.
011
1:19 p.m.
131
6:08 a.m.
060
6:08 p.m.
180
12:45 a.m.
004
12:45 p.m.
124
M-10
Commodity - Column 14-Three (3) Digit Code
Four coding boxes are provided. Leave first box blank.
Throo (3) digits are entered as per commodity code list.
N-11
(1) Non-productive report check.
? When no trip information is recorded, entrios of lines
7 and 8 shoule be "0". Draw red line thru code boxes
on first trip line.
(2) Entry Completness check
Check ontrios for each trip, in columns 9 to 14
inclusive, horizontally for completness. Land use and
address code boxes of a trips origin will not be filled
in if the information has been carried over from the
destination of the previous trip. (Indicated by &
diagonal arrow) Leave blank boxes blank.
Trips not to be coded will not have a trip
number in column 9. Draw at red line through code
boxes from column 9 to 14.
A-12
Code Home Base Addresses (subzonos) - Origin and Destination
Columns 10 and 11 - Five (5) digit code. Several
variations of "Mome Base" entries may appear in the trip
purpose column. Check all trip purpose entries on first
page.
Preceed as follows:
000156
NARA Reference Copy
TRUCK SURVEY CODING PROCEDURE (CONT)
000144
(5)
Category
If "Trip Purpose" Entry Includes
Code Address
Corresponding
to Entry
I
"Home Base" only
"Home Base"
II
"Home Base & Double Entry
"Home Base"
"Home Base
"Personal Use"
III
Double Entry
"Home Base"
"Home Base"
"Personal Use"
"Pers. Use"
IV
"Home Base" to "Home Base"
See Supervisor
Do not code addresses designated by arrows see
Step 7 note.
B-13
Verify 100% of A-12. The address coded must be verified
by checking it with the proper source. Circle with red pencil.
check the "Home Base" address coded. It should be the
same throughout each report.
I-14
Check lines 1 thru 8 for completeness.
000157
NARA Reference Copy
TRAVEL TIMES
000158
NARA Reference Copy
Wilbur Smith and Associates
006146
10-61
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
TRAVEL TIMES
PURPOSE AND SCOPE
Various studies have shown that a motorist chooses the path of
least resistence when traveling between two points in large metro-
politan areas. The path of least resistence is normally the route
on which the trip may be completed in the shortest time. Travel
time data are used to evaluate and analyze the capabilities of present
and future highway systems by determining routes on which trips may
be completed in the shortest time. By this method, various proposed
alternate routes may be evaluated in terms of savings in vehicle
miles, travel times and operating cost. This enables a complete
comparison of many of the benefits derived by the various alternates
and establishes which alternate should be built.
Travel within an urban area is normally determined on a zone
to zone, zone to station and station to station basis. Each zone
has a centroid of population from which all travel is assumed to
emanate. The selection of travel routes from zone to zone, zone to
station and station to station have been shown to be dependent on
the travel time by way of the various highway and arterial street
systems. Since the selection of travel routes is dependent on travel
time, it is necessary to determine the amount of time required in
traveling all major routes in the survey area. When this is done it
is possible to determine the routes used for trips, on which data
were obtained, in the various interview portions of the survey.
PRELIMINARY STEPS
Prior to the actual travel time runs it is necessary to establish
policies and objectives relative to the following items:
1. Major street and highway network.
2. Field Form.
3. Methods of administration.
MAJOR STREET AND HIGHWAY NETWORK.
The major streets and highways in an urban area may be deter-
mined by one or a combination of the following techniques:
1. Analyses of vehicle volume flow maps.
2. Review of major street maps provided by
governmental agencies.
3. Inspection by persons thoroughly familiar with
the area and with the approximate traffic volumes
on the existing roadways,
The major arterials in the Baltimore area were determined by
a combination of all three methods listed above. The City of Balti-
more submitted a map showing the arterial system that was considered
NARA Reference Copy
000159
000147
major by the Traffic and Transit Commission. This map was reviewed
by the Study staff and additional streets added or deleted to
complete a closed network. Major streets and highways in the county
were determined by the use of a traffic flow map furnished by the
State Roads Commission. Roadways having average daily traffic
volumes less than 1200 were not considered major unless they formed
part of a system required to complete a closed network. After all
major arterials have been delineated on a base map, the entire
system should be reviewed in order to be sure that all streets are
connected SO that traffic between various points will have continuous
paths of movement. If a portion of a street 1s not connected, the
travel time on this portion will be completely useless in future
analyses.
FIELD FORM
A properly prepared field form must lend itself to continuous
recording of data and should contain certain checks that may be
made during various phases of the work. The attached form (Figure
1) is designed SO that travel times may be recorded for an entire
street by merely recording the reading on a stop watch when inter-
secting streets, which have been pre-selected as control points,
are passed. By subtracting the times recorded at two consecutive
intersections the travel time between the intersections is obtained.
These readings may be checked by adding the time between intersections
and comparing this total to the final reading at the last intersecting
street. Averages may be checked by comparing "average-total time
for all runs" (bottom of form) with the total of the average time
column.
In order to insure the accuracy of the distance measurements, it
is necessary to obtain an adjustment factor that is applied to the
distances measured by the odometer. To isure the orderly conduct
of the travel time study, it was found that distance measurements
should be made prior to the actual time runs. This allows the
field crew sufficient time to record distances correctly as well as
to make adjustments in the field form for intersecting major streets
not shown on the form. If any changes are made, the changes must
be entered on a base map (in the office) that shows the streets used
in the travel time study. For these reasons it is necessary to
assign one crew to recording distances only. By this method any
additional streets that are considered major by the field crew may
be discussed with the supervisor before they are added to the travel
time map or used as control points for the time runs.
ADMINISTRATION
Travel time runs should be prepared for each major street or high-
way in the survey area, and all intersecting streets should be
recorded as control points. Each street or highway should be given
a route number and transferred to a chart (Figure 2) that gives the
route number, street name, and number of runs completed. When 6
to 8 runs are completed the supervisor checks all runs, averages
the travel times and initials the route as complete.
000160
NARA Reference Copy
000148
After several routes are completed, they should be transferred to
a tracing which may be overlaid on an original base map of routes
studied. By this method it is possible to determine at a glance
what streets have been completed and the streets that remain to be
done.
In many instances, unnecessary mileage is accumulated by travel
time crews due to improper scheduling of travel time-runs located
in unfamiliar areas. To keep total mileage to a minimum, it was
found necessary to utilize the attached chart (Figure 3) which shows,
the date, total mileage for the day, actual mileage driven on streets
that were timed, route numbers completed and the driver's name. A
daily review of this chart immediately shows which crews had diffi-
culty in finding the required routes, or which crews need adjust-
ments in route scheduling. Regardless of the reason the supervisor
should discuss any large differences in mileage with the crews and
take the necessary action to reduce excess travel.
CONDUCTION OF TIME RUNS
A travel time crew consists of a driver and recorder who are
equipped with a stop watch, clip board, and field forms with all
intersecting streets previously recorded. Before the travel time
crew leaves the office they should determine exactly what streets
they plan to use in driving to the actual travel time routes and
what streets should be taken in moving from one travel time route
to another. If such routings are outlined on a map prior to leaving
the office considerable time and mileage will be saved.
Each driver is instructed to maintain sufficient speed and per-
form passing maneuvers in accordance with the floating car technique.
This method is one in which the test car passes as many cars as
pass it, thereby maintaining a speed approximately equal to the
average for all vehicles on the timed route. This mothod, however,
may not hold true in rural areas where traffic is light and some
drivers exceed the speed limit. on rural roads where speed is not
influenced by the presence of other vehicles, the drivers are
instructed to drive at the speed limit.
Travel times and distances are to be recorded from center of inter-
section to center of intersection and are performed in the following
manner:
1. Check odometer and compute odometer adjustment factor
measured course
(factor = odometer reading).
2. Record street name, route number, driver, recorder, odometer
factor and page number on the travel time form.
3. Fill in "street name" column by recording the street of
origin and destination and all intersecting streets in between.
4. Measure distances between control points (intersections) by
odometer readings.
000161
NARA Reference Copy
000149
5. Multiply odometer adjustment factor by recorded di tances
between control points.
6. Enter this in "actual distance" column.
7. Compute total recorded distance and total actual distance
and enter at the base of the respective columns.
8. At the beginning of each time run record a date and hour
in the appropriate box.
9. Begin time run and record the stop watch reading at each
control point.
10. Subtract the stop watch readings for each consecutive inter-
section and enter this difference in the adjacent column.
11. Compute the total time for the run and record in the appropri-
ate space.
12. Repeat steps 8, 9, 10, and 11 at least six times.
13. Compute the average time between each pair of control points.
14. Compare the average total time for all runs with the total
of the "average time" column.
After all field work has been completed 1t is necessary to prepare
a map showing only the major streets used in the travol time study.
This map should be of sufficient scale to facilitate the entry of
travel timos and distances on each link of the system. This WPS
done in the Baltimore area by using three maps - one for the central
business district at a scale of one inch to 500 feet, one for the
remaining portions of the city at a scale of one inch to 1500 fcet,
and one for the surrounding counties at a scale of one inch to one
mile.
000162
NARA Reference Copy
EXTERNAL TRAFFIC ZONES
NARA Reference Copy
9843
000163
9841
2852
9842
9932
9562
DISTRICT BOUNDARY
1986
$
3
,
0
AMONDE 3NOZ
1996
3653
9563
108
9834
DESIGNATION 3N0Z
1373
2986
2262
9833
£986
117
LEGEND
ms
9554
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CAT
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1986
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3133
MARYLAND STATE ROADS COMMISSION
1961
BUREAU OF TRAFFIC
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
TRAVEL
1
CARD NO. MONTH & DAY
DWELLING UNIT INTERVIEW FORM
ROUTE NO.
SAMPLE NO.
ADMINISTRATIVE RECORD
DWELLING UNIT SUMMARY
SUBZONE NO.
1. INTERVIEWERS RECORD
A. INTERVIEW ADDRESS
D. U. STRUCTURE
1. ONE UNIT
4. FIVE OR MORE UNITS 7. TRAILER
0. OTHER
B. TELEPHONE NO.
2. TWO UNIT
9. HOTEL-MOTEL
#. DORMITORY.SCHOOL
(SPECIFY)
TRACT NO.
NAME
CALLS
C. TYPE D. U. STRUCTURE?
$. THREE . FOUR UNITS
6. ROOMING HOUSE
9. DORMITORY-INSTITUTIONAL
ROW HOUSE 1. YES 2. NO
-
D. DAY AND DATE OF TRAVEL? (YESTERDAY)
1. RENT HOME 2. OWN HOME
DAY OF WEEK
DATE
TIME
DATE
2
E. HOW MANY PERSONS LIVE IN THIS DWELLING UNIT?
TIME
DATE
1. HOW MANY ARE 5 YEARS OF AGE OR OLDER?
3.
TIME
DATE
2. HOW MANY ARE EMPLOYED?
4.
TIME
DATE
3. HOW MANY PASSENGER CARS ARE OWNED INCLUDE COMPANY & GOV'T. OWNED CARS AVAILABLE FOR USE-YESTERDAY
NOTES-
P. HOW LONG HAS HEAD OF HOUSEHOLD LIVED AT THIS DWELLING UNIT?
G. HOUSEHOLD INFORMATION: (for persons five years of age or older)
H. HOW MANY DWELLING UNITS USE THIS ELECTRIC METER?
PERSON
TRIPS
PERSON IDENTIFICATION
VII
First Mode of Travel
OCCUPATION
INDUSTRY
INTER-
DRIVER'S
NUMBER
(HUSBAND, WIFE, SON, ETC.)
SEX
NO
LICENSE
To Work School
YES
VIEWED
Yesterday
ADDRESS OF FIRST WORK OR SCHOOL TRIP
...
1
...
2
our
3
II. INCOMPLETE INTERVIEW
REASON-
:
4
inc
5
I CERTIFY THAT ALL INFORMATION ON THIS
FORM is CORRECT AND TRUE
and
INTERVIEWERS SIGNATURE
1
III. SUPERVISOR'S COMMENTS
CONT.
I. TOTAL NUMBER OF TRIPS REPORTED AT THIS DWELLING UNIT? (Include Visiters Trips)
1. NUMBER OF PERSONS 5 YEARS OF AGE OR OLDER MAKING TRIPS? (De Net Include Visiters)
2. NUMBER OF PERSONS 5 YEARS OF AGE OR OLDER MAKING NO TRIPS? (De Net Include Visiters)
3. NUMBER OF PERSONS 5 YEARS OF AGE OR OLDER WITH TRIPS UNKNOWNT (D. Net Include Visitors)
J. TOTAL NUMBER OF AUTO DRIVER TRIPS REPORTED AT THIS DWELLING UNIT? (Include Visiters Trips)
K, TOTAL NUMBER OF AUTO PASSENGER TRIPS REPORTED AT THIS DWELLING UNIT? (Include Visiters Trips)
OFFICE CHECKED
L. TOTAL NUMBER OF TRANSIT PASSENGER TRIPS REPORTED AT THIS DWELLING UNIT? (Include Visiters Tripa)
NAME
DATE
FIELD CHECKED
M. TOTAL NUMBER OF TAXI, TRUCK, AND SCHOOL BUS TRIPS REPORTED AT THIS DWELLING UNIT? (Include Visitors Trips)
NAME
DATE
EXTRA
2
3
N. STATUS OF DRIVER'S LICENSES?
CODE
H1-761
000164
DWELLING UNIT INTERVIEW FORM
(FRONT)
NARA Reference Copy
Wilbur Smith and Associates
TRIPS MADE BY PERSONS
I YEARS OF AGE OR OLDER
INTERNAL
TRIP REPORT
CARD
ROUTE
?
SAMPLE
SUBZONE
PAGE
OF
NO.
NUMBER
NUMBER
NUMBER
O
P
a
R
$
T
U
V
W
x
Y
Z
SPECIAL
MODE
PURPOSE OF TRIP
AUTO
DRIVER TRIPS ONLY
OCCUP
PERSON
TRIP
WHERE DID THIS TRIP BEGIN
WHERE DID THIS TRIP ENDI
*
AND
NUMBER
NUMBER
SEX
OF
TIME OF
ADDRESS AND LAND USE
ADDRESS AND LAND USE
FROM
P
TOTAL
IRDUS.
PERSONS
TYPE PARKING
CAR PARKED WHERE?
NOTE 000
TRAVEL
STARTING
ARRIVAL
FI
IN CAR
ADDRESS AND PARKING RATE
TRIPS
AM
M
1
1. AUTO DR.
1
WORK
1
1
I. STREET FREE
1. HOUR
A. SAME BLOCK
2. AUTO PASS.
1
PERSONAL BUS.
2
1
1. STREET METER
2. DAY
8. ACROSS STREET
2
3
REGREATION
1
3
1. LOT FREE
3. MONTH
OR WHERE?
3. TRANSIT
4
SCHOOL
4
4
4. LOT PAID
METER
3
4. TAXI PASS.
M
F M
$
SOCIAL
0
0
5. GARAGE FREE
5. FREE
ADDRESS
ADDRESS
CH. TR. MODE
@
9
4
6. GARAGE PAID
5. TRUCK PASS.
,
SHOPPING CONV,
7
7
7. SERVICE OR REPAIRE
#
6. SCH, BUS
,
SHOPPING GOODS
$
0
8. RES. PROPERTY
9
SERVE PA38.
B
#
T. CRUISED
LAND
LAND
CAR
#
HOME
#
0
a. NOT PARKED
USE
USE
POOL YES
M
M
1
1. AUTO DR.
1
WORT.
,
1
1. STREET FREE
1. HOUR
A. SAME BLOCK
2. AUTO PASS.
,
PERSONAL BUS.
2
2
2. STREET METER
2. DAY
B. ACROSS STREET
1
3
RECREATION
8
,
3. LOT FREE
3. MONTH
OR WHERE?
3. TRANSIT
SCHOOL
4
LOT PAID
METER
1
ADDRESS
4. TAXI PASS.
M
P M
B
SOCIAL
$
a
ADDRESS
5. GARAGE FREE
1. FREE
CH. TR. MODE
8
b. GARAGE PAID
4
5. TRUCK PASS.
7
SHOPPING CONV.
,
7
7. SERVICE OR REPAIRS
6. SCH. BUS
I
SHOPPING GOODS
a
a
8. RES. PROPERTY
.
SERVE FASS.
,
B
, CRUISED
LAND
LAND
CAR
HOME
.
,
0. NOT PARKED
USE
USE
POOL YES
1
A M
A M
1. AUTO DR.
1
WORK
1
1
1. STREET FREE
I. HOUR
A. SAME BLOCK
2. AUTO PASS.
2
PERSONAL RUS.
1
2. STREET METER
DAY
a. ACROSS STREET
,
3
RECREATION
2
1
1. LOT FREE
1. MONTH
OR WHERE)
3. TRANSIT
4
SCHOOL
4
4. LOT PAID
METER
,
4. TAXI PASS.
M
M
-
SOCIAL
#
$
5. GARAGE FREE
$. FREE
ADDRESS
ADDRESS
CH. TR. MODE
$
6
4. GARAGE PAID
4
5. TRUCK PASS.
7
SHOPPING CONV.
7
7
7 SERVICE OR REPAIRS
6. SCM. BUS
8
SHOPPING GOODS
1. RES PROPERTY
$
,
SERVE PASS.
,
,
9. CRUISED
CAR
HOME
8
6
LAND
LAND
0. NOT PARKED
USE
USE
POOL YES
A M
A M
1
1. AUTO DR.
1
WORK
1. STREET FREE
1. HOUR A. SAME BLOCK
2. AUTO PASS.
0
PERSONAL aus
2
2. STREET METER
2. DAY
0. ACROSS STREET
,
,
RECREATIONB.LOT FREE
3. MONTH
OR WHERE?
3. TRANSIT
SCHOOL
4
4 LOT PAID
METER
2
4. TAXI PASS.
P
P M
$
SOCIAL
$
$
5. GARAGE FREE
5. FREE
ADDRESS
ADDRESS
CH. TM MODE
,
0
6. GARAGE PAID
4
5. TRUCK PASS.
7
SHOPPING CONV.
7
7
7. SERVICE OR REPAIRS
6. SCM. BUS
,
SHOPPING GOODS
8
a
8. RES. PROPERTY
$
,
SERVE PASS.
,
9. CRUISED
LAND
LAND
CAR
#
HOME
a
0. NOT PARKED
6
,
USE
USE
POOL YES
:
A M
AM
1
1. AUTO DR.
1
WORK
1
1, STREET FREE
1. HOUR
A. SAME BLOCK
1, AUTO PASS.
2
PERSONAL RUS.
t
2
2. STREET METER
2. DAY
8. ACROSS STREET
,
3
RECREATION
3
3
3. LOT FREE
3. MONTH
OR WHERE
". TRANSIT
SCHOOL
4
LOT PAID
METER
3
4. TAXI PASS.
P M
M
B
SOCIAL
$
I
$. GARAGE FREE
3. FREE
ADDRESS
ADDRESS
8
CH TR. MODE
I
0
6. GARAGE PAID
4
5. TRUCK PASS.
7
SHOPPING CONV.
,
,
7. SERVICE OR REPAIRS
6. SCH. BUS
#
SHOPPING GOODS
I
&
a. RES. PROPERTY
8
9
SERVE PASS,
#
.
4. CRUISED
LAND
LAND
CAR
HOME
#
#. NOT PARKED
.
USE
USE
POOL YES
AM
AM
1
1. AUTO DR.
1
WORK
I
1. STREET FREE
1. HOUR
A. SAME BLOCK
2. AUTO PASS.
2
PERSONAL BUS.
1
2
2. STREET METER
DAY
B. ACROSS STREET
,
3
RECREATION
8
3
3. LOT FREE
1. MONTH
OR WHERE?
3. TRANSIT
6
SCHOOL
,
4
4. LOT PAID
4, METER
3
4. TAXI PASS.
PM
PM
$
SOCIAL
,
$
5. GARAGE FREE
S. FREE
ADDRESS
ADDRESS
.
CH. TR. MODE
.
4
& GARAGE PAID
5. TRUCK PASS.
T
SHOPPING CONV.
7
7
7. SERVICE OR REPAIRS
6. SCH. BUS
8
SHOPPING GOODS
8
#
1. RES. PROPERTY
.
SERVE PASS.
#
8
9. CRUISED
LAND
LAND
CAR
#
HOME
0
8
6. NOT PARKED
USE
USE
POOL YES
000165
DWELLING UNIT INTERVIEW FORM
(REVERSE-TRIP REPORT)
NAR Réference Copy
MARYLAND STATE ROADS COMMISSION
1961
PAGE
OF
BUREAU OF TRAFFIC
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
TRUCK REPORT
CARD NO.
4
ADMINISTRATIVE RECORD
1. OWNER
TELEPHONE NO.
MONTH & DAY
2. ADDRESS
15. INTERVIEWERS RECORD
Sample NUMBER
3. STATE LICENSE NO.
MAKE OF TRUCK
YEAR OF MFG
4. TYPE TRUCK
3.
PANEL OR PICK-UP
a. TWO AXLE DUAL TIRE
37. THREE AXLE COMBINATION
57.
FIVE AXLE
PERSON INTERVIEWED
4. TWO AXLE. SINGLE TIRE
6.
THREE AXLE. SINGLE UNIT
47. FOUR AXLE COMMINATION
COMBINATION
DRIVER OF VEHICLE YES
NO
5. DAY & DATE OF TRAVEL (Yesterday)
REGISTERED GROSS WEIGHT (CW)
CALLS
DAY
DATE
6. INDUSTRY
BUSINESS
-
TIME
DATE
7. ESTIMATED DAYS MILEAGE WITHIN SURVEY AREA
2
TIME
DATE
8. TOTAL NUMBER OF STOPS OR TRIPS WITHIN SURVEY AREA
1.
TRIP
WHERE D/D THIS TRIP BEGIN
WHERE 010 THIS TRIP END
TRIP
MID-POINT
NO.
ADDRESS AND LAND USE
ADDRESS AND LAND USE
PURPOSE
TIME
COMMODIT Y
TIME
DATE
9
10
11
12
13
14
4.
ADDRESS
ADDRESS
AM PM
TIME
DATE
1
Home Base
1
2
Personal use
2
NOTES-
3
Retail Dal.
3
4 Wholessle Del.
4
$
Trash Col.
#
6 Mall and express
6
LAND USE
LAND USE
7 Construction
7
8 Maint. and Repair $
NO, OF
9
Furniture trans.
9
0
Other (Expl.)
0
TRIPS
ADDRESS
ADDRESS
1
Home base
1
AM
PM
2
Personal use
2
3
Retall Dal.
3
4 Whole Del.
4
5
Tresh Col.
5
6 Mall and express 6
LAND USE
LAND USE
7
Construction 7
a Maint. and Repair 8
NO. OF
9 Funiture trans. 9
GROUPER
0 Other (Expl.)
0
TAIRS
INCOMPLETE INTERVIEW
REASON-
ADDRESS
ADDRESS
1
Home base
1
AM
PM
2 Personal use
2
3
Retail Del.
3
4 Wholesale Dal.
4
$
Tresh Col.
3
6 Mall and express 6
I CERTIFY THAT ALL INFORMATION ON THIS
LAND USE
LAND USE
7
Construction
7
FORM IS CORRECT AND TRUE
Maint. and Repair 8
$0. OF
9 Furniture trans. 9
GROUPED
0 Other (Expl.)
0
TRIPS
INTERVIEWERS SIGNATURE
ADDRESS
ADDRESS
AM PM
1
Home base
1
16. SUPERVISORS COMMENTS
2
Personal use
2
3
Retail Del.
3
4 Wholessie Del.
4
5.
Tresh Col.
$
6 Mail and express 6
LAND USE
LAND USE
7
Construction
7
a Maint. and Repair
-
NO. OF
9
Furniture trens.
0
BROUPED
0
Other (Expi)
0
TRIPS
ADDRESS
ADDRESS
1
Home base
1
AM PM
OFFICE CHECKED
2 Personal use
2
3
NAME
DATE
Retall Del.
3
4 Wholessis Del.
4
FIELD CHECKED
$
Tresh Col.
$
NAME
DATE
6 Mail and express 6
T
EXTRA CODE
-
2
3
LAND USE
LAND USE
Construction 7
Maint. and Repair 8
NO. OF
, Furniture trans, 9
BROUPED
0
Other (Expl.)
0
T1-761
TRIPS
000166
TRUCK INTERVIEW FORM
1
NARA Reference Copy
MARTLAND STATE ROADS COMMISSION - BUREAU of TRAFFIC
MA-3A-6-61
CARD NO.
3
1
ALA
INBOUND
STATION NO.
MONTH
DAY
HOUR BEGINNING
PM
INTERVIEWER'S NAME OR NO.
If. Work-employment
1. Origin address
21. Work-business
2. Destination address
12. Pert. business
13. Recreation
14. School
IS, Social
16. & travel mode
17. shopping Conv
LAND
USE
10. Shopping goods
or where?
L
11. Work-employment
1. Origin address
21. Work-business
1. Destriction address
12. Pers. business
" Recreation
14. School
15 Social
16. Ch travel mode
17 Shopping Cerv.
LAND
18 Shopping
USE
or where?
11. Work-employment
1. Origin address
21. Work-business
2. Destination address
12 Pars business
13. Recreation
14. School
15. Social
16. Ch. travel mode
17 Shopping Code.
LAND
18 Shopping goods
USE
where?
11. Work-employment
1. Origin address
" Work-butiness
2. Destination address
I
17 Pets business
11. Recreation
14 School
IS Social
11 Ch travel mode
17 Shapping Conv
LAND
It Shopping goods
USE
or where?
II Workemployment
1, Origin address
at Work-business
2 Destination address
12 Pars business
11 Recreation
14 School
15 Sne of
16 travel mude
17. Shopping Cont.
LAND
If Shopping goods
USE
or where?
TOTAL
SERIAL
VEHICLE
PERSONS
WHERE DiD THIS TRIP REGIN
WHERE WILL THIS TRIP ENO!
TRIP
WHERE DOES CAR
TRUCKS ONLY
ASK ONLY OF TRIPS THRU SURVEY AREA
HOUR
24 HOUR
NUMBER
TYPE
14
ADDRESS
ADDRESS & LAND USE
PURPOSE
DRIVER LIVE OR is
VEHICLE
LOAD
COMMODITY
ROUTE
INTERMEDIATE STOP
PUR-
TRUCK BASED
or EXIT
ADDRESS
POSE
EXP. FACTOR
01 PASSENGER CAR-THIS STATE
R. EMPTY
1, WORK OR BUSINESS
PASSENGER CAR-OTHER STATE
FICK-UP OR PANEL
1, 4 LOAD
SHOPPING
AXLE, SINGLE TIRE
2. LOAD
1. RECREATION
05. 2 AXLE. DUAL TIME
1. K LOAD
AXLE, SINGLE UNIT
< EAT MEAL
08 TAXI
4. FULL
a. GAS on 32
09 BUS
6. OVERNIGHT
TRACTOR TRAILERS
1961
37. AXLE
67. ARE
87. AXLE
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
William Smith and Amodates
EXTERNAL TRIP REPORT
CHECKED BY SUPERVISOR
000167
EXTERNAL INTERVIEW FORM
NARA Reference Copy
Wilbur Smith and Amoricates
NO. 2 CARD
NO. 3 CARD
NO. 4 CARD
NO. 5 CARD
WORD
INTERNAL TRIPS
EXTERNAL TRIPS
TRUCK TRIPS
TAXI TRIPS
I Left
CARD NUMBER
CARD NUMBER
CARD NUMBER
CARD NUMBER
(ICHAR.)
( I CHAR.)
(1 CHAR.)
(1 CHAR.)
6
1 Right
TRAVEL MODE
VEHICLE TYPE
VEHICLE TYPE
VEHICLE TYPE
(ICHAR.)
2 Left
FROM PURPOSE
FROM PURPOSE
ZEROS
ZEROS
( CHAR.)
CHAR.)
12
2 Right
TO PURPOSE
TO PURPOSE
ZEROS
ZEROS
(1 CHAR.)
(1 CHAR)
3 Left
ZEROS
ZEROS
ZEROS
ZEROS
ASSIGNMENT CENTROIOS
ASSIGNMENT CENTROIDS
18
3 Right
ORIGIN ZONE
ORIGIN ZONE
ORIGIN ZONE
ORIGIN ZONE
4 Left
ZEROS
ZEROS
ZEROS
ZEROS
ASSIGNMENT CENTROIDS
ASSIGNMENT
CENTROIDS
24
4 Right
DESTINATION ZONE
DESTINATION ZONE
DESTINATION ZONE
DESTINATION ZONE
5 Left
ZEROS
ZEROS
ZEROS
ZEROS
DIGITS, DEC.)
(3 DIGITS, DEC)
3 DIGITS, IDEC)
(3 DIGITS, DEC)
30
5 Right
TRIP FACTOR
TRIP FACTOR
TRIP FACTOR
TRIP FACTOR
6 Left
ZEROS
DIRECTION
ZEROS
ZEROS
CENTROIDS
36
6 Right
ZEROS
ZEROS
RESIDENCE ZONE
OCCUPANTS
2DIG.- HR., DIG.-12HR.
WHERE
STARTING
STARTING
7 Left
GARAGED
TIME
ZEROS
TIME
ZEROS
STARTING TIME
OR
OR
42
ARRIVAL
MIDPOINT
ARRIVAL
7 Right
ARRIVAL TIME
INTERVIEW TIME
MIDPOINT
TIME
TIME
TIME
TIME
8 Left
FROM LAND USE
FROM LAND USE
FROM LAND USE
FROM LAND USE
(ICHAR.)
(I CHAR.)
(ICHAR)
(1 CHAR.)
48
8 Right 8
TO LAND USE
TO LAND USE
TO LAND USE
TO LAND USE
CHAR.)
(ICHAR.)
(1 CHAR.)
CHAR.)
12
13
9
9
* Records are blocked 10, 20 or 48 characters in each record.
000168
U. S. BUREAU OF PUBLIC ROADS
STANDARD 48 CHARACTER RECORD FORMAT
NARA Reference Copy
FOR SURVEY CARDS 2, 3, 4, AND 5
MULTIPLE LAYOUT CARD FORM
ESTIMATE NO.
CUSTOMER NAME
SHEET NO.
JOB NO.
Tract No.
Person
Trip Information
Vehicle Type
Factor
Persons
Over
Mode
#
/
# 2
#
3
# 4
DWELLING UNIT
SUMMARY
NAME OF CARD
Card No. 9 1
Month 9 2
Day 9 3
5eeson 9 4
Route No.
9
- 9999 Sample
Number 3
9
9
Subzone 13 9
14 9 Humber
9
9
3hructure D.U. 19 9
S 20 9
OF: Ward 21 9
Dist Elec. 22 9
9 23 Cen.
24 9 Tract
House Rou 26 9
Rant Own 27 9
Total 29 9
30 9 Over No.
5
9
9
penmo Cors 33 9
At Vears 34 9
Address This 35 9
1.0.0 buisn 36 9
Meter This 37 9
Total
9
Making 40 9
Trips 41 9
Matring 42 9
% Trips 43 9
unkonom 44 9
Auto 9 15
Driver 46 9
47 Auto 9
Pass. 48 9
Transit
9
9
9 17
9
32 9
9
Taxi 51 9
52 9 Sch. Truck BUS
53 9 of Status 54 9
Lic. Drivers 55 9
Make 56 9
Model 57 9
Year 58 9
Make 59 9
Model 60 9
61 Year. 9
Make 62 9
Model 63 9
Year 64 9
65 Moke 9
Model 66 9
Year
A. D.T.
Season 9
Control X 80 9
- #
9
9
9
9
9
3
9
9
9
9 9 9
9 9
5
6
7
10
11
12 15 16
18
25
28
31
38
39
49
50
67 58 69 70 71 72 73
74 75,76
77
79
Subzone
Gang
Card No.
DUPLICATE SAME AS NO. I
of Work
Punch
SCHOOL AND
EMPLOYMENT
NAME OF CARD
Drivers Lic 54 9
0
Sex 53 9
Mode 55 9
Occupation 9 56
Industry 57 9
or School
Same As
Address
No. Card
*
99999999999999999999999999999999999999999999999 2
9
9
9
9
9
9
9
9
9
9
99999999999
9 9 9 9 9 9
9
3
4
5
$
7
,
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
58
59 60 61 62 $3
64
65
66
67
68
69
70
71
72
73
74 75 76 77 78 79
so
Origin
Destination
Time
Purp.
Auto
Driver
odd
Parking
Into.
Trips
Gang
DUPLICATE SAME AS NO. 1
Punch
TRIP SUMMARY
SAME OF CARD
9 Card No.
9 2
9
Industry 27 9
28 9 Person No. 29 9
Trip No.
9
9
9
9
9
Sex 32 9
33 9 Land Use 34 9
9
37 Subzone 9
38 9 Number
Subzone
9
9
Ocupation 26 9
Number 45 9
48 9 Use Land 49 9
Mode 9 50
2
9
9
9
Start 52 9
Arrive 3 55
was 57 9
To 9 58
Occupancy 59 9
9 60 Type
Role 62 9
Subzons 65 9
Number 66 9
5 Pass. Purp.
Vehicle
Same As
Type
No. Card
#
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
54 9
9
9
9
9
9
9
9
9 9 9
9
9
9
9
9
9
9
3
4
5
6
7
-
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
30
31
35
36
39
40
41 42 43 44 46 47
51
53
56
61
63
64
67
68
69
70
71
72
73
74 75 76 77 78 79
90
.
Origin
n
A
Destination
Where
Trucks
Thru Trips
Factor
Garaged
Intermesiate stop
EXTERNAL INTERVIEWS
NAME OF CARD
No. Card 9 1
Direction 9 2
Station 9 3
Number 9 4
Month 9 5
Day 9 6
9 7 Hour 9 #
9 Serial 10 9
Number 9 11
Vehicle 12 9
Type 13 9
Occupancy 9 14
3
9 Land 15
Use 16 9
17 9
18 Subzone 19 9
Number 20 9
9
9
Subzene 26 9
Number 27 9
Land Use
33 9 Purpose 34 9
Code 35 9
Zone
9
9
37 9 Number 38 9
Lagd 39 9
Commodity 42 9
Route to 44 9
Entry 45 9
= 9 Subzone
Number 49 9
Purpose 53 9
Hour 55 9
Hour 24 58 9
#
9
9
9
9
9
9
9
9
9
9
9
9
47 9
50 9
9
9
9
9
9
9
23
24
25
29
59 9
60 9
61 9
62 9
9
9
9
9
9
9
9
9 70
71 9
9 72
9 73
9
9
9
9
9
9
9
21
22
28
30
31
32
36
40 41 43
46
51
52
54
56
57
63
64
65
66
67
60
69
74
75
76
77
78
79
80
Origin
n
Destination
Purp.
in
TRUCK SUMMARY
NAME OF CARD
9 Cord No.
Manth 9 2
Doy 9 3
9
Sample 9 5
Number 9 6
9
Year of 9 $
Mitq. 9 9
of Type 10 9
Truck 9 "
12 9 Requitered 13 9
Weight Gross 9 14
9
Industry 9 16
9
9 18 Days Est.
Millege 19 9
Reea 20 9
9 9 No. of Stops
22 Area La 23 9
999 Number 26
Trip
27 9 Land Use 9
31 Subzone 9
32 9 Number
9 Subzene
Number 9
9 9 9 9
44 9 Trips Grouped 45 9
34 9
9 9, 9
9
42 9 Lise Land 43 9
wast 9 46
to
Time
9
9
50 9
9999 52
Commedity 53
Factor 56 9
# 4
9
55 9
57 9
9 58
59 9
60 9
9 61
52 9
9 63
9
9
56 9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
1
4.
,
15
17
21
24
25
28
29
30
33
35
36 37 38 39 40
41
47
49
49
51
54
64
65
67
58
69
TO
71
72
73
74
75
76
77
78
79
BQ
Origin
,
Destination
Airp.
TAXI SUMMARY
NAME OF CARD
Card No. 9 1
Month 9 2
Day 9 3
9
Sample 9 5.
Number 9 $
9
Year 9 0f 8
mfg. 9 9
10 9
" 9
12 9
9
9 14
9 15
9
9
18 9 Days Est.
19 9 Millege S
20 Reea 9
21 9 5,0ps of 22 9
No.
Rece S 23 9
Trip
25 Number 20 9
9 Land Use
9.9
9
9
9
31 Subrone 9
32 9 Number
9
9
9
37 9 Subzone
38 9 Number
Land Use
9
9
9
9
9
44 9 Trips Grapped 45 9
34 9
from 46 9
47 9 of
9
Time 49 9
Factor 56 9
7
35
50 9
51 9
52 9
53 9
54 9
55 9
9
58 9
59 9
9 60
9 61
62 9
9 63
64 9
9 65
9 $6
67 9
9
9
9
9
9
9
9 74
9
9
9
9
9
9
Cord # 5
4
13
16
17
24
27
28
29
30
33
36
39
40
41
42
43
48
57
60
69
70
71
72
73
75
76
77
78
73
80
SURVEY CARD LAYOUT
80 CHARACTER FORMAT
NARA Reference Copy
0000169
UNITED STATES OF AMERICA
#
*
*
GENERAL SERVICES ADMINISTRATION
*
*
National Archives and Records Service
*
*
Washington, DC 20408
DENERAL SURVICES
*
4
*
Baltimore Metropolitan Area Transportation Study 1962
Verification of the first five cards is as shown in the record layout
except the make, model and year of the vehicles which does not match
the number of vehicles stated as owned. There is no code for area or
for vehicle make and year or season.
See the following pages in the manual: 5 for county code, 9 for districts
of the survey area, 46 for the home interview instructions, 116 for the
status of drivers license, 128 for the vehicle model code, 69 and 140 for
the month and day code. See also the dwelling unit interview form, page
4, Baltimore Metropolitan Area Transportation Study, Volume II for the
dwelling and structure code and rent or own and row house codes.
MARCIA LEWIS
Archives Technician
Machine-Readable Archives Division
000170
NARA Reference Copy
FILE FORMAT DESCRIPTION
File No. 1
Dwelling Unit
Summary
Columns
Description
1
Card Number
2
Month
3
Day
4
Season seepa 115
5-6
Route Number
7-10
Sample Number
11
Blank
12-16
Subzone Number
17
5 or 10% Area
18
Blank
19
Dwelling Unit Structure-see p.164 164
20
City or County
21-22
Ward or Election District
23-25
Census Tract
26
Row House
27
Rent or Own
> see p.164
28-29
Total Persons
30-31
Persons Over 5
32
Persons Employed
33
Cars Owned
34-35
Years At This Address
36-37
D.U. 's Using This Meter
38-39
Total Trips
40-41
Persons Over 5 Making Trips
42-43
Persons Over 5 Making No Trips
44
Unknown
45-46
Auto Driver Trips
47-48
Auto Passenger Trips
49-50
Transit Trips
51-52
Taxi, Truck, School Bus Trips
53-55
Status of Drivers License
56
Vehicle #1 Make
57
Vehicle #1 Mode¹
58
Vehicle #1 Year
59
Vehicle #2 Make
60
Vehicle #2 Model
61
Vehicle 2 Year
62
Vehicle #3 Make
63
Vehicle #3 Model
64
Vehicle #3 Year
65
Vehicle #4 Make
66
Vehicle #4 Model
67
Vehicle #4 Year
68-73
Blank
74-76
ADT Factor (XX.X)
77-79
Season Factor (XX.X)
80
Control "X"
000171
NARA Reference Copy
UNITED STATES OF AMERICA
*
GENERAL SERVICES ADMINISTRATION
#
*
National Archives and Records Service
"
Washington, DC 20408
SERVICES
# ADDRESS ATION
#
Baltimore Metropolitan Area Transportation Study 1962 (File 2)
Verification of the first five cards is as shown in the record layout
except for the "y" placed in some blank spaces and the 7 recorded in
80 which should also be blank.
See the following pages for codes:
month and day-69, 140
dwelling unit structure-47
city or county-5
occupation-129
industry-131
land use at origin-136
land use at destination-136
starting and arrival times-113
parking rate-123
See the interview form, pg. 5, Baltimore Metropolitan Area Transportation
Study Volume II for the following codes:
sex
travel mode
pu. ,,ose to and from
type of parking
passenger purpose
The following do not have codes:
season
area
vehicle type This may be on interview form pg 6, UCI II.
MARICA LEWIS
Archives Technician
Machine-Readable Archives Division
000172
NARA Reference Copy
FILE FORMAT DESCRIPTION
File No. 2
Home Interview Survey
-
Trip Summary
Columns
Description
1
Card Number
2
Month
3
Day
4
Season
5-6
Route Number
7-10
Sample Number
11
Blank
12-16
Subzone Number
17
5. or 10% Area
18
Blank
19
Dwelling Unit Structure
20
City or County
21-22
Ward or Election District
23-25
Census Tract
26
Occupation
27
Industry
28-29
Person Number
30-31
Trip Number
32
Sex
33-34
Land Use at Origin
35
Blank
36-40
Origin Subzone
41
Blank
42-46
Destination Subzone
47
Blank
48-49
Lank Use at Destination
50
Travel Mode
51-53
Start Time
54-56
Arrive Time
57
Purpose From
58
Purpose To
59
Car Occupancy
60
Type Parking
61-62
Rate
63
Blank
64-68
Subzone Where Parked
69
Blank
70
Passenger Purpose
71-73
Vehicle Type
74-76
ADT Factor (XX.X)
77-79
Season Factor (XX.X)
80
Blank
000173
NARA Reference Copy
UNITED STATES OF AMERICA
#
*
GENERAL SERVICES ADMINISTRATION
*
*
National Archives and Records Service
*
*
Washington, DC 20408
SERVICES
A ADDRESS TEATION
*
*
Baltimore Metropolitan Area Transportation Study 1962 (File 3)
Verification of the first five cards is as shown in the record layout
with the following exceptions:
54-73 are supposed to be blank,
but characters appear consistently in 68-73.
See the following pages for codes:
month, day and hour-69
See the interview form, pg. 6, Baltimore Metropolitan Area Transportation
Study, Volume II for the following codes:
trip purpose
load (trucks)
vehicle type
The following do not have codes:
direction
occupancy
where garaged (code)
route of entry (thru trips)
purpose of intermediate stop
MARICA LEWIS
Archives Technician
Machine-Readable Archives Division
000174
NARA Reference Copy
FILE FORMAT DESCRIPTION
File No. 3
External Survey
Columns
Description
1
Card Number
2
Direction
3-4
Station Number
5
Month
6
Day
7-8
Hour
9-11
Serial Number
12-13
Vehicle Type
14
Occupancy
15-16
Land Use at Origin
17-22
Origin Subzone
23
Blank
24-29
Destination Subzone
30
Blank
31-32
Land Use at Destination
33-34
Trip Purpose
35
Where Garaged (Code)
36-38
Where Garaged (Zone)
39
Load (Trucks)
40-43
Commodity (Trucks)
44-45
Route of Entry (Thru Trips)
46
Blank
47-51
Subzone of Intermediate Stop
52
Blank
53
Purpose of Intermediate Stop
54-73
Blank
74-76
Hour Factor (XX.X)
77-79
24 Hour Factor (XX.X)
80
Blank
000175
NARA Reference Copy
UNITED STATES OF AMERICA
#
$
GENERAL SERVICES ADMINISTRATION
#
=
National Archives and Records Service
a
#
Washington, DC 20408
GONERAL SERVICES
#
ADDRESS
TEANON
*
12
Baltimore Metropolitan Area Transportation Study (File 4)
Verification of the first five cards is as shown in the record layout.
See the following pages for codes:
Month and day-140
Land use at origin and eestination-136
Time-113
Commodity-133 (The commodity code may not be appropriate because the
dump shows four characters while the code indicates
three characters.)
Industry-131 (The dump shows three characters. The first character
represents industry and the second two indicate business.)
See the interview form, pg. 7, Baltimore Metropolitan Area Transportation
Study, Volume II for the following codes:
The following do not have codes:
Business
MARCIA LEWIS
Archives Specialist
Machine-Readable Archives Division
000176
NARA Reference Copy
FILE FORMAT DESCRIPTION
File No. 4
Truck Survey
Columns
Description
1
Card Number
2
Month
3
Day
4-7
Sample Number
8-9
Year of Manufacture
10-11
Type of Truck
12-14
Registered Gross Weight
15-17
Industry
18-20
Estimated Days Mileage in Area
21-23
Number of Stops in Area
24-26
Trip Number
27-28
Land Use at Origin
29
Blank
30-34
Origin Subzone
35
Blank
36-40
Destination Subzone
41
Blank
42-43
Land Use at Destination
44-45
Grouped Trips
46
Purpose From
47
Purpose To
48-50.
Time
51-54
Commodity
55-57
Factor (XX.X)
58-80
Blank
000177
NARA Reference Copy
UNITED STATES OF AMERICA
#
*
GENERAL SERVICES ADMINISTRATION
#
*
National Archives and Records Service
*
*
Washington, DC 20408
CHARRAL SINVICES
* ADDRESS TRANCH *
# * *
Baltimore Metropolitan Area Transportation Study (File 5-Link Data File)
Verification of the first five cards is as shown in the record layout.
The only exception or deviation is that characters 50-80 with the
exception of 72 are consistently blank. There is no Turn Prohibitor
File print out which is included in the File Format Description.
MARCIA LEWIS
Archives Specialist
Machine-Readable Archives Division
000178
NARA Reference Copy
FILE FORMAT DESCRIPTION
Link Data File
Columns
Description
1
Jurisdiction
2
Blank
3-6
A-Node
7
Blank
8-11
B-Node
12
Blank
13
Sign
14
Flag
15
Blank
16-18
Distance in Miles (X.XX)
19
Blank
20
"I" or "S" (A-B)
21
Blank
22-24
Time or Speed-Field 1 (A-B)
25-27
Time or Speed-Field 2 (A-B)
28-30
Time or Speed-Field 3 (A-B)
31-34
Blank
35
"T" or "S" (B-A) (Blank if 1-Way)
36
Blank
37-39
Time or Speed-Field 1 (B-A)
40-42
Time or Speed-Field 2 (B-A)
43-45
Time or Speed-Field 3 (B-A)
46-49
Blank
50-53
Node B of Link to be Changed
54
Blank
55-60
Capacity
61-66
Count
67-71
72
Blank "4" - means Link Data
73-80
Blank
Turn Prohibitor File
3-6
A-Node of Fntry Link
9-12
B-Node of Entry Link
prohibied
15-18
P-Node
24
Type of Prohibitor (A=Add. D=Delete)
72
"5"
prohibites
000179
NARA Reference Copy
UNITED STATES OF AMERICA
4
GENERAL SERVICES ADMINISTRATION
27
*
National Archives and Records Service
*
GENERAL SERVICES
Washington, DC 20408
*
*
4
*
RG 200
NN374-10
BALTIMORE METROPOLITAN AREA TRANSPORTATION STUDY
Notes on Link Data File and Turn Prohibitor File Documentation.
The basic reference work for the whole study procedure is the Bureau of Public
Roads (U.S.), Traffic Assignment Manual. The format of these tapes was
created for operation with an IBM 7094.
The file consists of card images. The 1st card contains the title rather than
data. The "Turn Prohibitor File" directly follows the "Link Data File" with
nothing in between.
CODES
Column 1) Jurisdiction
1-Baltimore City
2-Baltimore County
3-Anne Arundel County
O-Howard County
Columns 3-6, 8-11) Nodes--see map
Column 13) Sign (direction of travel-for term penalties in network)
+ or - (for explanation see BPR Manual)
Column 20) "T" or "S"
S-Speed (all of this file were speed)
T-Time
Column 22-30) Time or Speed Fields Speeds in Miles per hour
Column 22-4) Field 1--A.M. Peak
Column 25-7) Field 2--P.M. Peak
Column 28-30) Field 3--24 hour.
Columns 35-45) A repeat of 20-30 for the opposite direction of travel,
Columns 50-53) Used in revising the system to delete a link (shouli not
be on this file)
Columns 55-60) Capacity. # of vehicles in 24 hours.
Columns 61-6) Count-actual traffic (sometimes blank).
Prepared by:
Charles Gellert
Archivist
Machine Readable Archives Division
National Archives
REVOLUTION
AMERICAN
BIGENTENNIAL
7776-1976
Keep Freedom in Your Future With U.S. Savings Bonds
000180
NARA Reference Copy
A Reference Copy
235051
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611969088210002000000900002
20007231961201177 235011 1213022220302120301060
2+ 235051
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IARA Reference Copy
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ARA Reference Copy
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2050857
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0S6T 53507 01305 553061 I 10101 2
9516980280109 52401 6600 553061
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0966280280166 52401
FORM 1412 PRINTED
53507 553061
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53507 19362250213211 54806
33 553061 0
1
056608008011 54806 55403 553061 2152080214
0091
DATA
9
BLOCK
2050857
T
0000081 55403 55306 0 553061
55306 79401 0 553061 001-
79401 2910730750113
20508572-51080213 553061 3209362230301211 55306
55306 50401 10100960
33 553061
2-51080213 553061 3209362030104160 50608 50401 8411111131113
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20508572-51080213 553061 3209362030103141 40004 50608 6011101111115
MOORE BUSINESS FORMS INC
40004 80909 0910 553061 1001-
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55506 553061 00-0
09362330102162 09902 55306 1111711801013
33 553061 1000 10660 008019 20660 55306 553061
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016 51512 53303 0-660
12 553031 01080-
2-42080210 553031 12093629-0206252 61503 53303 1111611638521
0091
DATA
S
BLOCK
2050857
5211401425823 61503 53303 12183b29-0205211 553031
53303 T0919 100-6 553031 01
1 10919
53004 0- 553031 010080
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1190120020186 53504 55303 555031 0100- 8
20508572-42080210 553031 12093629-0202298 53503 53004 5211131146823
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190201202 10060
20508572-42080210 553031 1209362640102198 53504
55301 55306 09362091205250 1112032047011
25 553061 000-
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2050857
20508572-51080209 553061 3209362090203211 55306 54706 6612002010218
A Reference Copy
666 1109 10191 954111 610610010010
215
20
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00000 3621 13306 22
0618 12806090119 6106T00100T0
50610647 5721 0905 154111 1500506090
009 DATA
17
BLUCK
008008016016
26301 4411 666 954111
008008016016 31106409051011
666 3512 10920 119041 11006001 910910800800
000185
29
666 81-5 18204 954111 1101060490112 910910800800
666 8721 90060 11
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666 5211 18204 953212 11006090115 9109 0800800
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666 8331 40303 II
0618 910910800800
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666 BI-S 16402 600618 00 910910800800
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666 5017 18203 1
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666 1109 04000 I
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665 8119 17201 155111
0091 DATA E BLUCK
910910800800
54602 1115 996 333314 31106409031012
23500000 4321 23507 954111 0 910910800800
FORM 1412 RH PRINTED
008008016016 31106409021011 954111 10705 8721 520
16
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9541 1060901 910910800800
666 8421 17551 954111
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666 1112 16304 954111 910910800800
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0091 DATA 2
of
910910800800
666 5217 16402 953314 910910800800
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666 TITL 14102 954111 0 910910800800
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666 1109 52601 954111 6106T0010010
99920719 8321 7.009 II
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0091 DATA
1
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****
EXTERNAL SURVEY
00 300W SYSTEM 08 DEVICE * *
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0091
DATA
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11
910910800800
666 6721 10191 954111 1101206049011E 910910800800
ED
008008016016 31106409062017 819019 961217 --15 999
114 2112 14403 953112 110190609011E 6I0610010010
22 74004 2221 74000000
9563 610610010010
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666 5021 20003 953212 110290609011 910910800800
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666 5112 18203 1
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008008016016 31106409053011 954111 06202 5211 521
ARA Reference Copy
75305 71409 2011
0660
21408 71305 1161
0 71305 71305 1181 020
71305 20E12 1111
0091 DATA
7
87078
4-205555703100569050070 1611 71305 71304 1101331100999072
71305 71210 TIST
1101331040999072
006187
21210 71210 11+1
2066 721210 21313 1111 020
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0091
DATA
E
BLUCK
0 525011 52508 1113
FORM 1412 RH PRINTED IN 1)
20661 52508 SILLS 1101
1101331210199072
SITIS 54105 2911
54119 52309 2861 036
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0 52309 52307 2711
0 52307 52307 2661
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40405545703100565063036 2511 54502 52307 6101331110199072
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0091
DATA
2
BLOCK
51112 52003 1101 92090900
2206610600 52003 52802 1160
528802 52202 1180
036 0711 51101 52202 1101330920199072
066060 TOTTS 52808 1190
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1101330850199072
52008 32210 1931
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0091 DATA
I
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00 300W SYSTOI 08 1 DEVICE * *
Batimore Truck Summy
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ARA Reference Copy
20666060 90601 13104 2311 190690010
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0091 DATA
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1113331730665072
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0091
DATA
9
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44505565605170556135070 1311 44204 44204 1104331230665072
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LINK DATA
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SI
A Reference Copy
UNITED STATES OF AMERICA
*
4
GENERAL SERVICES ADMINISTRATION
#
*
National Archives and Records Service
&
*
GENERAL SERVICES
Washington, DC 20408
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ADMINISTRATION
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RELATED PUBLICATIONS
The Machine-Readable Archives Division has the following publications
related to the Baltimore Transportation Study:
Baltimore Area Mass Transportation Study: Phase I Report, Long
Range Study Program. Metropolitan Transit Authority of Maryland.
Baltimore: 1964.
Baltimore Area Mass Transportation Plan: Phase II, Long Range Program.
Metropolitan Area Transit ⁴uthority ofMaryland. Baltimore: 1965.
Baltimore Metropolitan Area Transportation Study: Volume I, Findings
and Recommendations. Maryland State oads Commission. Baltimore: 1964.
Volume II, Statistical Data.
Baltimore Region Rapid Transit System: Feasibility and Preliminary
Engineering. Mass Transit Steering Committee and Regional Planning
Council. Baltimore: 1968.
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NARA Reference Copy
NATIONAL
ARCHIVES
Supplemental User Note
Baltimore Metropolitan Area Transportation Study Files, 1962
NN3-MDT-74-010
Records of the Maryland Department of Transportation (Collection MDT)
The supplemental documentation for this series can be found with the documentation for the
series Northeast Corridor Intercity Travel Survey (NECITS), 10/1969 - 4/1970 in the General
Records of the Department of Transportation (Record Group 398).
Electronic Records Division
August 29, 2014
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RECORDS ADMINISTRATION
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Records of the Maryland Department of Transportation