Signal Inventory Diagrams (SID)

Monday, January 1, 2024

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Signal Inventory Diagrams Disclaimer

The documents on this site represent the latest signal inventory diagrams for intersections in the City and County of San Francisco. The City does not guarantee their accuracy. Users must verify conditions and measurements in the field for the most accurate up to date information. Other agencies (such as Caltrans, Port of SF, and the SF Recreation and Parks Department) share jurisdiction and may maintain signal infrastructure at certain locations. If the SFMTA does not have signal inventory diagrams for these locations, you may contact those agencies.

Signal inventory diagrams are not the official source for traffic signal timing; you may submit a public records request for traffic signal timing cards.

The SFMTA accepts no liability or responsibility for use or misuse of these records; they are merely records of existing city traffic signal infrastructure.