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13 datasets

National Highway System

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Under MAP-21, the Enhanced NHS is composed of rural and urban roads nationwide serving major population centers, international border crossings, inter...

State Highway Bridges

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

The bridge inventory data was obtained from Caltrans Structure Maintenance and Investigations (SM&I) Database as of 05/08/2020. SM&I performs ...

Truck Volumes AADT

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Annual average daily truck traffic is the total truck traffic volume divided by 365 days. Truck counting is done throughout the state in a program of ...

CRS - Functional Classification

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Functional Classification is used in determining eligibility for Federal funding programs. The Federal Highway Administration (FHWA) identifies Funct...

Bottlenecks

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

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

Traffic Volumes AADT

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

This traffic volumes feature class containing Traffic Volumes (also known as Traffic Counts) on California state highway network created from AADT exc...

Rest Areas

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Caltrans provides Safety Roadside Rest Areas as a part of the State Highway System pursuant to Streets and Highways Code, Sections 218-226.5. Safety R...

Park and Ride

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

California’s Managed Lanes comprise of HOV Lanes, Express Lanes and Park and Ride facilities. Park and ride lots provide a location for individuals to...

HOV

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

High-Occupancy Vehicle (HOV) lane, also known as the carpool or diamond lane, is a traffic management strategy to promote and encourage ridesharing; t...

SHN Postmiles Tenth

Published by: Caltrans
Last updated: Thursday, December 5, 2024
File types: HTML, ARCGIS GEOSERVICES REST API, GEOJSON, CSV, KML, ZIP

Postmiles are valid postmile points at 0.1 (1/10th) mile intervals, based on the Caltrans Linear Referencing System, updated to match TSN as it appear...