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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: September 7, 2025

    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

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    Dates

    Metadata Created Date September 2, 2022
    Metadata Updated Date September 7, 2025

    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 September 7, 2025
    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 2025-09-04T03:48:01.442Z
    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 6d157a97-87d8-451e-80bb-88aa4517d710
    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 {{extent:computeSpatialProperty}}
    Source Datajson Identifier True
    Source Hash 082154405368be0445f562b11deac72594677692ed5619aa7daeec588d555af9
    Source Schema Version 1.1
    Spatial

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