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    • ITS4US UW Transportation Data Exchange Initiative TDEI

    Metadata Updated: December 2, 2025

    What is the Transportation Data Exchange Initiative (TDEI)?

    Cities, organizations, and individuals currently lack detailed, accurate, and standardized data on the locations of footpaths, cycle paths, sidewalks, and crossings. Moreover, there is inconsistent information about the attributes of these pathways that affect walking, rolling, and non-motorized travel, as well as a limited understanding of how these paths are connected or disconnected.

    The OpenSidewalks project aims to address this data deficiency by proposing a) a robust data schema (OpenSideWalks or OSW) and b) a comprehensive data tools ecosystem that support collection and maintenance of sidewalk data (which we call the TDEI).

    These resources are designed to give planners, policy makers, and community advocates the data they need to improve pedestrian infrastructure, particularly in historically underserved areas.

    Current funding is provided by the USDOT/JPO ITS4US program under the University of Washington’s TDEI deployment project. OpenSidewalks is led by the Taskar Center for Accessible Technology (TCAT) housed by the Paul G. Allen School for Computer Science and Engineering at the University of Washington.

    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 April 22, 2025
    Metadata Updated Date December 2, 2025

    Metadata Source

    Harvested from DOT Socrata Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 22, 2025
    Metadata Updated Date December 2, 2025
    Publisher Federal Highway Administration
    Maintainer
    Identifier https://data.transportation.gov/api/views/m5kf-5ve8
    Data First Published 2025-04-18
    Data Last Modified 2025-12-01
    Category Bicycles and Pedestrians
    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 2b2501ad-f27e-4eb8-bc84-9a3ec0f0ad6d
    Harvest Source Id a776e4b7-8221-443c-85ed-c5ee5db0c360
    Harvest Source Title DOT Socrata Data.json
    Homepage URL https://data.transportation.gov/d/m5kf-5ve8
    License http://creativecommons.org/publicdomain/zero/1.0/legalcode
    Old Spatial Baltimore County, MD; Columbia County, OR; King County, WA; Montgomery County, MD; Multnomah County, OR; Snohomish County, WA
    Program Code 021:042
    Source Datajson Identifier True
    Source Hash 410169161d361d55f522be7523f3a8d673bb3c940283d4a812355a2326d35da9
    Source Schema Version 1.1
    Spatial

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