Caltrans
Website: https://dot.ca.gov/
Caltrans manages more than 50,000 miles of California's highway and freeway lanes, provides inter-city rail services, permits more than 400 public-use airports and special-use hospital heliports, and works with local agencies. Caltrans carries out its mission of providing a safe, sustainable, integrated and efficient transportation system to enhance California’s economy and livability, with six primary programs: Aeronautics, Highway Transportation, Mass Transportation, Transportation Planning, Administration and the Equipment Service Center.
Search Caltrans datasets
52 datasets
Active Transportation Count Dataset
- Published by: Caltrans
- Last updated: Wednesday, February 18, 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...
State Highway System Intersection
- Published by: Caltrans
- Last updated: Saturday, March 14, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
As part of the Transportation System Network Replacement Project (TSNR), Highway Inventory module data migration, it was determined Caltrans would be ...
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...
Early Development Project List
- Published by: Caltrans
- Last updated: Friday, October 31, 2025
- File types: CSV, EXCEL (XLSX)
The project list serves as a resource to the public, stakeholders, and local communities to provide information on ongoing transportation projects cur...
California All Public Roads Network
- Published by: Caltrans
- Last updated: Saturday, March 14, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
The Caltrans All Roads Linear Referencing Services (LRS) dataset provides the base geometry for federally required Highway Performance Monitoring Syst...
Regional Transportation Planning Agencies
- Published by: Caltrans
- Last updated: Saturday, March 14, 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...
California Metropolitan Planning Organization (MPO)
- Published by: Caltrans
- Last updated: Saturday, March 14, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
This dataset contains the geographic boundaries of Metropolitan Planning Organizations (MPO) and is intended for metropolitan area multimodal transpor...
State Highway Network Lines
- Published by: Caltrans
- Last updated: Saturday, March 14, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
StateHighways are state highways based upon the Caltrans Linear Referencing System. Each record in this layer represents a highway segment where the c...
State Highway Network Postmiles Tenth
- Published by: Caltrans
- Last updated: Saturday, March 14, 2026
- File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML
Postmiles are valid postmile points at 0.1 (1/10th) mile intervals, based on the Caltrans Linear Referencing System. Exceptions that are included are ...
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...