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    • Inequity Identification Tool (IIT) Noise Cost

    Metadata Updated: August 9, 2024

    This file contains the road segments from FHWA's HPMS dataset with estimates of the cost of noise pollution from the traffic on that segment. The cost of noise pollution is estimated using a combination of traffic volumes and speeds from FHWA's HPMS, the noise produced through FHWA's TNM3.1, the number of households affected from the US Census ACS 2019, and the per unit noise costs from a series of studies cited in FHWA's ECAT. The resulting cost per road segment is transformed into cost per 1/10 mile length of roadway and binned into 7 different categories to reduce the file size. For more information on this data please visit: https://maps.dot.gov/fhwa/iit/

    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 19, 2024
    Metadata Updated Date August 9, 2024

    Metadata Source

    Harvested from DOT Socrata Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 19, 2024
    Metadata Updated Date August 9, 2024
    Publisher Federal Highway Administration
    Maintainer
    Identifier https://data.transportation.gov/api/views/ezve-p4hw
    Data First Published 2024-03-27
    Data Last Modified 2024-08-08
    Category Roadways and Bridges
    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 a4c01b61-1d59-4b82-9e27-066a8515cafe
    Harvest Source Id a776e4b7-8221-443c-85ed-c5ee5db0c360
    Harvest Source Title DOT Socrata Data.json
    Homepage URL https://maps.dot.gov/fhwa/iit/
    License https://www.usa.gov/government-works
    Program Code 021:009
    Source Datajson Identifier True
    Source Hash 94200c8a09a27fba11933c515ae0819f47e697cec436b84285a2b018adf39651
    Source Schema Version 1.1

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