Transportation Data and Statistics: Safety

U.S. Department of Transportation, National Highway Traffic Safety Administration

Contains information about crashes and fatalities on the American Highway System.

California Highway Patrol

The Statewide Integrated Traffic Records System (SWITRS) is a database that serves as a means to collect and process data gathered from a collision scene. The Internet SWITRS application is a tool by which California Highway Patrol (CHP) staff and members of its Allied Agencies throughout California can request various types of statistical reports in an electronic format. Custom reports can be created by the user to capture data relevant to specified criteria such as Jurisdiction, Location, or Annual or Quarterly reports by date.

UC Berkeley, SafeTREC

Provides data and mapping analysis tools and information for traffic safety related research, policy and planning.

U.S. Department of Transportation, Bureau of Transportation Statistics

A collection of databases surrounding different areas of transportation safety. Includes aviation, hazardous materials, motor vehicles, and other modes.

HSIS is a roadway-based system that provides quality data on a large number of crash, roadway, and traffic variables. It uses data already being collected by States for managing the highway system and studying highway safety. The data are acquired annually from a select group of States, processed into a common computer format, documented, and prepared for analysis. Data are available to requestors in multiple formats including comma-separated values (.csv), Microsoft Excel, SAS, and GIS shape files.