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    • Basic Safety Message Data Emulator

    Metadata Updated: January 20, 2026

    The Trajectory Conversion Algorithm Version 2.3 (TCA) is designed to test different strategies for producing, transmitting, and storing Connected Vehicle information. The TCA uses vehicle trajectory data, roadside equipment (RSE) location information, cellular region information and strategy information to emulate the messages connected vehicles would produce. This data set contains common data sets generated by the TCA using the BSM and PDM at 100% market penetration for two simulated traffic networks, an arterial network (Van Ness Avenue in San Francisco, CA) and a freeway network (the interchange of I-270 and I-44 in St. Louis, MO).

    This legacy dataset was created before data.transportation.gov and is only currently available via the attached file(s). Please contact the dataset owner if there is a need for users to work with this data using the data.transportation.gov analysis features (online viewing, API, graphing, etc.) and the USDOT will consider modifying the dataset to fully integrate in data.transportation.gov.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date January 20, 2026
    Data Update Frequency irregular

    Metadata Source

    Harvested from DOT Socrata Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 12, 2020
    Metadata Updated Date January 20, 2026
    Publisher US Department of Transportation
    Maintainer
    Identifier https://data.transportation.gov/api/views/e8av-qz9y
    Data First Published 2016-01-01
    Language en-US
    Data Last Modified 2016-01-01
    Category Automobiles
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 021:15
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.transportation.gov/data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Data Quality True
    Harvest Object Id 12ea6ca9-963d-4579-b698-9af72d43467d
    Harvest Source Id a776e4b7-8221-443c-85ed-c5ee5db0c360
    Harvest Source Title DOT Socrata Data.json
    Homepage URL https://data.transportation.gov/d/e8av-qz9y
    License http://creativecommons.org/licenses/by-sa/3.0/legalcode
    Old Spatial Van Ness, California; St. Louis, Missouri
    Program Code 021:013
    Source Datajson Identifier True
    Source Hash 93e2cd79db096b49265962bd5442746d9859e5b0e0c1f3e501d335a84d82f4a5
    Source Schema Version 1.1
    Spatial
    Temporal 2016-03-28/2016-03-28

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