Turner-Fairbank Highway Research Center


What is HSIS?

The Highway Safety Information System is a multistate database that contains crash, roadway inventory, and traffic volume data for a select group of States. Download our brochure (PDF, 590 KB) to learn more. HSIS is managed by the University of North Carolina Highway Safety Research Center (HSRC) under contract with FHWA.

HSIS Student Data Contest

This contest is designed to encourage students to use HSIS data with the intent of introducing potential future highway safety professionals, to good quality safety data, the application of appropriate research methods to derive recommendations, and the practice of using data to make decisions.

State Data

The participating States were selected based on the quality and quantity of data available, and their ability to merge data from various files. Click on the map below for more information.

California Illinois Maine Michigan Minnesota
North Carolina Ohio Utah Washington


HSIS data are used in a wide variety of research efforts. Products of these efforts include HSIS summaries, research reports, safety analysis tools, and published articles and technical papers in professional journals.

View Products



HSIS is a roadway-based system that provides quality data on a large number of accident, roadway, and traffic variables. It uses data already being collected by States for managing the highway system and studying highway safety.

View Guidebooks



There are numerous agencies, organizations and other entities in the U.S. that are working to make our roads safer. Links are provided to the web sites of these groups as well as links to additional sources of crash data.

View Resources