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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov. See Terms

    3.27 Traffic Delay Reduction (summary)

    Metadata Updated: March 29, 2026

    The city is using Travel Time Index as a measure to quantify traffic delay in the city. The Travel Time Index is the ratio of the travel time during the peak period to the time required to make the same trip at free-flow speeds. It should be noted that this data is subject to seasonal variations.  The 2020 Q2 and Q3 data includes the summer months when traffic volumes are lower, thus the Travel Time Index is improved in these quarters.

      The performance measure page is available at 3.27 Traffic Delay Reduction.  
        Additional Information   Source: Bluetooth ARID sensors   Contact (author): Cathy Hollow   Contact E-Mail (author): catherine_hollow@tempe.gov   Contact (maintainer):    Contact E-Mail (maintainer):    Data Source Type: Table, CSV   Preparation Method: Peak period data is manually extracted.  The travel time index calculation is the peak period data divided by the free flow data (constant per segment).     Publish Frequency: Quarterly   Publish Method: Manual   Data Dictionary 

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. See Terms License: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date September 2, 2022
    Metadata Updated Date March 29, 2026

    Metadata Source

    Harvested from City of Tempe Data.json Harvest Source

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 2, 2022
    Metadata Updated Date March 29, 2026
    Publisher City of Tempe
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=d878fa064c4543c5ad14577d3123d8a0&sublayer=0
    Data First Published 2020-10-13T16:01:54.000Z
    Data Last Modified 2026-03-25T22:19:17.896Z
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    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 750f32ed-03a0-44fa-8972-840c21de1bd2
    Harvest Source Id ceea1675-8276-45f1-b45c-bb28dba71955
    Harvest Source Title City of Tempe Data.json Harvest Source
    Homepage URL https://data.tempe.gov/datasets/tempegov::3-27-traffic-delay-reduction-summary
    License https://creativecommons.org/licenses/by/4.0
    Metadata Type geospatial
    Old Spatial ""
    Source Datajson Identifier True
    Source Hash 4618e80fe8c8f5120c92cca1f487f5a38f63c540e4656a8ea7881798b7b2c6bd
    Source Schema Version 1.1
    Spatial ""

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