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42 datasets

State Highway Network Lines

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
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: Wednesday, August 20, 2025
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 ...

Hospital Heliports

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

This Hospital Heliport point layer displays California hospital heliport locations with the links to the heliport info sheets that provide permitted a...

Vistas

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Vista points are informal pullouts where motorists can safely view scenery or park and relax. They do not include rest rooms. Vista points may have fa...

Bottlenecks

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Bottleneck Mapping is a subproject of the Mobility Performance Report, which is one of the products of the Mobility Performance Reporting and Analysis...

Truck Average Daily Traffic

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
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 truck count year is from October 1st through September 30th. Ve...

Annual Average Daily Traffic

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
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. ...

Caltrans Districts

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

The District boundary definitions are primarily based on the California county boundaries. The Board of Equalization (BOE) County and City Boundary we...

Commercial Vehicle Enforcement Facilities

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
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...

Airport Boundaries

Published by: Caltrans
Last updated: Wednesday, August 20, 2025
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

California Department of Transportation (Caltrans), Division of Transportation Planning, Aeronautics Program provided airport layout drawings with est...