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

    Speed Limits per Street Segment

    Metadata Updated: March 22, 2026

    A. SUMMARY Maximum speed limits per street segment for the City of San Francisco. Speed limits are indicated primarily for streets that have speeds greater than 25 MPH, unless the speed limit has been changed from a higher speed or a speed survey has been conducted to enforce the de facto speed limit of 25 MPH. 25 MPH is the de fact speed limit for most residential and commercial streets, and apply to streets on this map denoted by a 0 MPH label. Alleys narrower than 25 feet can have de facto speed limits of 15 MPH.

    B. METHODOLOGY Speed limit legislation information is taken from MTAB legislation and in some cases directives from engineers in the 5212 classification. Speed limit implementation information is taken from SSD Shops Reports and then parsed via python code. Implementation for speed limits will specify when signs are put in stating the new speed limits, and the work order that the sign installation was spec'd in.

    C. UPDATE FREQUENCY Updated quarterly or on an as need basis by request

    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. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date November 10, 2020
    Metadata Updated Date March 22, 2026

    Metadata Source

    Harvested from SFO JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 10, 2020
    Metadata Updated Date March 22, 2026
    Publisher data.sfgov.org
    Maintainer
    Identifier https://data.sfgov.org/api/views/3t7b-gebn
    Data First Published 2025-01-15
    Data Last Modified 2026-03-21
    Category Transportation
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://data.sfgov.org/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 8230d417-426d-4e32-a7bd-2e681c36c9fa
    Harvest Source Id 8507fa43-f429-4095-b732-2177330ce485
    Harvest Source Title SFO JSON
    Homepage URL https://data.sfgov.org/d/3t7b-gebn
    License http://opendatacommons.org/licenses/pddl/1.0/
    Source Datajson Identifier True
    Source Hash a09ab7772fa8485221040a13f493e7fb7285f88de3624d478be7cb4299073ea6
    Source Schema Version 1.1

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