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California Road Sharing (CaRS) Initiative Partnerships

Purpose of this dataset is to show CA counties that are involved in the CaRS program. This dataset shows contact information and data partnership information from the CaRS initiative. The CA County Boundary file was downloaded March 2, 2026 from the CA State Geoportal (https://gis.data.ca.gov/datasets/California::california-county-boundaries-and-identifiers/about). California Department of Transportation (Caltrans) has added additional fields in the attribute table to show CA county participants for the CaRS initiative. This dataset will be updated and modified on an as needed basis.

Data files

Data title and descriptionAccess dataFile detailsLast updated

CSV

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CSV
07/23/26

Shapefile

DownloadZIP
07/23/26

GeoJSON

DownloadGEOJSON
07/23/26

KML

DownloadKML
07/23/26

File Geodatabase

DownloadZIP
07/23/26

Supporting files

Data title and descriptionAccess dataFile detailsLast updated

ArcGIS Hub Dataset

HTML
07/23/26

ArcGIS GeoService

ARCGIS GEOSERVICES REST API
07/23/26

API endpoint

Dataset Name

Use the query web API to retrieve data with a set of basic parameters. Copy the API endpoint you need to start.

Usage documentation