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{
    "localId": "645105",
    "label": "Dwelling Unit and Home Interview Trip Summary Survey File",
    "core": "doc",
    "dtoType": "document",
    "citationUrl": "https://catalog.archives.gov/id/645105"
}

{
    "id": "645105",
    "sourceUrl": "https://catalog.archives.gov/id/645105",
    "contentType": "document",
    "title": "Dwelling Unit and Home Interview Trip Summary Survey File",
    "description": "This file contains the results from two surveys, the Dwelling Unit Survey and the Home Interview Survey, Trip Summary.  Survey data are from a 5-percent sample of dwelling units and trips in the Baltimore metropolitan area.  The Dwelling Unit Survey has data identifying each unit surveyed by location, type of structure, number of residents (total, number over age five, number employed and making trips), number of trips (by total, car driver, car passenger, transit, taxi, truck or school bus), number of cars owned, status of driver's license, and sample weights.  The Home Interview Survey, Trip Summary file has data identifying persons by occupation, industry, and sex.  Data relating to trips include the origin and destination (by sub zone, land use, time, and purpose), mode of travel, car occupancy, vehicle type, type of parking, and sample weights.",
    "citationUrl": "https://catalog.archives.gov/id/645105",
    "collections": [
        "Records of the Maryland Department of Transportation",
        "Baltimore Metropolitan Area Transportation Study Files"
    ],
    "iiifBase": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/MDT/BMAT/RG200.BMATS.DWHIS.TXT",
    "thumbnailUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/MDT/BMAT/RG200.BMATS.DWHIS.TXT",
    "largeImageUrl": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/MDT/BMAT/RG200.BMATS.DWHIS.TXT",
    "imageCount": 3,
    "hasImages": true,
    "source": "import",
    "hasTranscription": false
}

{
    "url": "https://catalog.archives.gov/id/645105",
    "naId": 645105,
    "levelOfDescription": "fileUnit",
    "recordType": "description",
    "ocrSource": "nara-archive"
}

{
    "seq": 3,
    "pageIndex": 0,
    "type": "document",
    "url": "https://s3.amazonaws.com/NARAprodstorage/lz/electronic-records/MDT/BMAT/BMAT_TSS391.pdf",
    "mediaId": "4481b45906a6b9b5",
    "ocrText": "Electronic Records Technical Specifications Summary (Manifest of Files)\nBaltimore Metropolitan Area Transportation Study Files, compiled 1962\nDescription ID: 645103\nNATIONAL\nARCHIVES\nSeries from Collection MDT: Records of the Maryland Department of Transportation\nElectronic Records\nDwelling Unit and Home Interview Trip Summary\nDescription_ID: 645105\nXMIS_No.: 003571\nPrepared: 7/11/2018\nSurvey File\nFile name: RG200.BMATS.DWHIS.TXT\nFormat: ASCII Text, fixed-length\nSize (bytes): 12714920\nRecord_Count: 155060\nRecord_Length: 82\nfields/records with two record-\ndelimiters (carriage return and line\nfeed); record length includes\ndelimiters\nExternal and Truck Trip Survey File\nDescription_ ID: 645108\nXMIS_No.: 003572\nPrepared: 7/11/2018\nFile name: RG200.BMATS.EXTRK.TXT\nFormat: ASCII Text, fixed-length\nSize (bytes): 13129020\nRecord_Count: 160110\nRecord_Length: 82\nfields/records with two record-\ndelimiters (carriage return and line\nfeed); record length includes\ndelimiters\nLink Data and Turn Prohibitor File\nDescription_ ID: 645114\nXMIS_No.: 003573\nPrepared: 7/11/2018\nFile name: RG200.BMATS.LDATP.TXT\nFormat: ASCII Text, fixed-length\nSize (bytes): 317258\nRecord_Count: 3869\nRecord_Length: 82\nfields/records with two record-\ndelimiters (carriage return and line\nfeed); record length includes\ndelimiters\nTechnical Documentation\nTechnical Documentation\nPrepared: 7/11/2018\nFile name: 391.1DP.pdf\nFormat: PDF\nSize (bytes): 28970437\n7/11/2018\nBaltimore Metropolitan Area Transportation Study Files, compiled 1962\nPage 1 of 2\nThe files listed on the Technical Specifications Summary and accessible through the National Archives Catalog are fully open. In some cases, the records may\nhave administrative markings indicating limited access to the records, but these markings are no longer applicable.\nDescriptions of the records are available via the National Archives Catalog.\nAny of the files listed above without a description ID are available on two or more of the descriptions for the electronic records files.\n7/11/2018\nBaltimore Metropolitan Area Transportation Study Files, compiled 1962\nPage 2 of 2"
}