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    • Long-Term Pavement Performance (LTPP)

    Metadata Updated: March 28, 2026

    Long-term Pavement performance, construction, traffic, and environmental data for more than 2500 pavement sections in the United States and Canada. More than a dozen experimental designs address specially constructed and existing asphalt and concrete pavements, and maintenance and rehabilitation strategies. Data collection has been on-going since 1990. About one third of the pavement sections are still under study. New warm-mix asphalt concrete pavement overlay sections are currently being recruited and constructed.

    Access & Use Information

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

    Collection

    This dataset is a collection of other datasets.

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    Downloads & Resources

    References

    https://infopave.fhwa.dot.gov/%3FGoto=Library

    Dates

    Metadata Created Date November 12, 2020
    Metadata Updated Date March 28, 2026
    Data Update Frequency R/P1Y

    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 March 28, 2026
    Publisher Federal Highway Administration
    Maintainer
    Identifier DOT-679
    Data First Published 1993-07-01
    Language en-US
    Data Last Modified 2026-03-27
    Category Transportation
    Public Access Level public
    Data Update Frequency R/P1Y
    Agencydataseriesurl http://www.infopave.com/
    Agencyprogramurl http://www.fhwa.dot.gov/research/tfhrc/programs/infrastructure/pavements/ltpp/
    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
    Categorydesignation Research
    Collectioninstrument https://infopave.fhwa.dot.gov
    Collection Metadata true
    Data Quality True
    Data Dictionary https://infopave.fhwa.dot.gov/Page/Index/IMS_USER_GUIDE
    Harvest Object Id 9cb8b379-698e-4e5f-b9f1-0b3741595792
    Harvest Source Id a776e4b7-8221-443c-85ed-c5ee5db0c360
    Harvest Source Title DOT Socrata Data.json
    Homepage URL https://data.transportation.gov/d/mmv8-jgga
    License https://project-open-data.cio.gov/unknown-license/
    Phone 202-493-3149
    Program Code 021:009
    Related Documents https://infopave.fhwa.dot.gov/%3FGoto=Library
    Source Datajson Identifier True
    Source Hash 30de8247f92bd1fd4e7be26a907954f60b98208bf5f47c7408949bf5bf89e3c8
    Source Schema Version 1.1
    Temporal R/1993-07-01/P1Y

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