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123 datasets

Average Transit Speeds by Stop

Published by: Caltrans
Last updated: Wednesday, April 8, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

All day and peak transit 20th, 50th, and 80th percentile speeds on segments estimated on a single day for all CA transit operators that provide GTFS r...

California Metropolitan Planning Organization (MPO)

Published by: Caltrans
Last updated: Wednesday, April 8, 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...

Hospital Heliports

Published by: Caltrans
Last updated: Wednesday, April 8, 2026
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...

State Highway Network Postmiles Tenth

Published by: Caltrans
Last updated: Wednesday, April 8, 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 ...

State Highway Network Lines

Published by: Caltrans
Last updated: Wednesday, April 8, 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...

Caltrans Vista Points

Published by: Caltrans
Last updated: Wednesday, April 8, 2026
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, April 8, 2026
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...

State Highway System Intersection

Published by: Caltrans
Last updated: Wednesday, April 8, 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 ...

Airport Boundaries

Published by: Caltrans
Last updated: Wednesday, April 8, 2026
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...

Annual Average Daily Traffic

Published by: Caltrans
Last updated: Wednesday, April 8, 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. ...