California Transportation Disparities Mapping Tool

The Transportation Disparity Mapping Tool is a project developed to better understand disparities in transportation and the built environment in California at the neighborhood (census tract) level. This tool focuses on five major categories:

  • Transportation
  • Accessibility
  • Social, Economic, and Demographic
  • Housing
  • Health

The data/mapping portal covers private vehicle ownership, public transit, active transportation, and transportation networks.The mapping of these disparities supports agencies and organizations studying climate change and environmental justice.

This tool is funded by the California Air Resources Board (CARB), which is mandated to assess progress toward climate goals. CARB also aims to ensure all segments of society benefit from California’s climate agenda, including disadvantaged communities, in order to create a more environmentally just future.

An advisory committee provided input on the indicators and includes representation from state agencies, community organizations, and research universities. 

Guidance on how to use this mapping tool can be found in the Transportation Disparities Mapping Tool User Guide. The development of this user guide was funded in part by the California Initiative for Health Equity and Action.

A full report detailing each indicator is available here.