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    • Traffic Signal Change and Clearance Interval Pooled Fund Study Utah SPaT Data

    Metadata Updated: November 4, 2025

    This dataset contains Signal Phase and Timing (SPaT) data collected from signalized intersections in Utah, from vendor PANASONIC as part of the ITS JPO's Traffic Signal Change and Clearance Interval Pooled Fund Study. Each record includes timestamped signal state information for up to eight signal groups per intersection, indicating real-time traffic signal phases (e.g., Red, Green) across different movement directions. The data supports analysis of vehicle behavior during clearance intervals and enables the synchronization of Basic Safety Message (BSM) trajectories with corresponding signal states to study driver decision-making in response to signal changes.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: us-pd

    Downloads & Resources

    Dates

    Metadata Created Date November 4, 2025
    Metadata Updated Date November 4, 2025

    Metadata Source

    Harvested from DOT Socrata Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 4, 2025
    Metadata Updated Date November 4, 2025
    Publisher Federal Highway Administration
    Maintainer
    Identifier https://data.transportation.gov/api/views/j7k2-8r24
    Data First Published 2025-10-28
    Data Last Modified 2025-11-03
    Category Automobiles
    Public Access Level public
    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
    Harvest Object Id 3de602b3-773b-4122-acf7-d49dd0b296a4
    Harvest Source Id a776e4b7-8221-443c-85ed-c5ee5db0c360
    Harvest Source Title DOT Socrata Data.json
    Homepage URL https://data.transportation.gov/d/j7k2-8r24
    License http://www.usa.gov/publicdomain/label/1.0/
    Old Spatial Utah
    Program Code 021:042
    Source Datajson Identifier True
    Source Hash 8e02eebfcb8a6b0a1b8f381fdf9c18425ce86445a38ee36cb9a8f31b68c8183e
    Source Schema Version 1.1
    Spatial {"type":"Polygon","coordinates":-114.0473,36.9917,-114.0473,42.0023,-109.0432,42.0023,-109.0432,36.9917,-114.0473,36.9917}

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