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    • Seattle I-405 Simulated Basic Safety Message

    Metadata Updated: January 20, 2026

    Data provided consists of Basic Safety Messages (BSM) generated by the Trajectory Converter Analysis (TCA) tool with input from VISSIM calibrated simulations of the I-405 corridor in Seattle, Washington. The Seattle I-405 data environment includes data for a variety of network operational conditions, market penetrations of connected vehicles and communication strategies along the I-405 travel corridor.

    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 R/PT0.1S

    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/ntts-pk3f
    Data First Published 2016-01-01
    Language en-US
    Data Last Modified 2016-01-01
    Category Automobiles
    Public Access Level public
    Data Update Frequency R/PT0.1S
    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 7e676e97-4bdc-4bbb-84cf-6a20b371d0ac
    Harvest Source Id a776e4b7-8221-443c-85ed-c5ee5db0c360
    Harvest Source Title DOT Socrata Data.json
    Homepage URL https://data.transportation.gov/d/ntts-pk3f
    License http://creativecommons.org/licenses/by-sa/3.0/legalcode
    Old Spatial Seattle, Washington
    Program Code 021:053
    Source Datajson Identifier True
    Source Hash 18e835118c0b436162ecf88d7f60bbd732b0f95cbd13322a1c22b3c9f253e63d
    Source Schema Version 1.1
    Spatial
    Temporal 2016-08-01/2016-08-01

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