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41 datasets

Annual Average Daily Traffic

Published by: Caltrans
Last updated: Monday, February 16, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Annual average daily traffic is the total volume for the year divided by 365 days. The traffic count year is from October 1st through September 30th. ...

Commercial Vehicle Enforcement Facilities

Published by: Caltrans
Last updated: Monday, February 16, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

A Commercial Vehicle Enforcement Facility (CVEF) commonly called a Weigh Station (WS) is a checkpoint typically located directly off the State highway...

Regional Transportation Planning Agencies

Published by: Caltrans
Last updated: Monday, February 16, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The RTPA polygon feature class provides California Regional Transportation Planning Agencies (RTPA) legislative boundaries, primarily for regional pla...

National Highway System

Published by: Caltrans
Last updated: Monday, February 16, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The National Highway System consists of a network of roads important to the economy, defense and mobility. On October 1, 2012 the existing National Hi...

Highway Rail Crossing

Published by: Caltrans
Last updated: Monday, February 16, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The PUC data contains a [grade] attribute that allows for the isolation of at-grade crossings. There are 10,478 at-grade records in the most recent PU...

2023 Named Freeways, Highways, Structures and Other Appurtenances in California

Published by: Caltrans
Last updated: Friday, November 14, 2025
File types: CSV

Named Freeways, Highways, Structures and Other Appurtenances in California Publication Named Freeways, Highways, Structures and Other Appurtenances in...

2022 Named Freeways, Highways, Structures and Other Appurtenances in California

Published by: Caltrans
Last updated: Friday, December 13, 2024
File types: CSV

Named Freeways, Highways, Structures and Other Appurtenances in California Publication Named Freeways, Highways, Structures and Other Appurtenances in...

Active Transportation Count Dataset

Published by: Caltrans
Last updated: Thursday, January 22, 2026
File types: PDF, XLSX, CSV

The Pedestrian and Bicycle Count Dataset documents non motorized traffic on state highways, originating from Caltrans district pilots initiated in 202...

2023 Crash Data on State Highway System

Published by: Caltrans
Last updated: Thursday, July 3, 2025
File types: CSV

The Crash Data On California State Highways Report is produced annually by the California Department of Transportation (Caltrans) to provide high leve...

2022 Crash Data on State Highway System

Published by: Caltrans
Last updated: Friday, November 15, 2024
File types: CSV

The Crash Data On California State Highways Report is produced annually by the California Department of Transportation (Caltrans) to provide high leve...