Samenvatting
The article describes the highway safety information system (hsis), a new highway data base developed by the federal highway administration (fhwa) and the university of north carolina highway safety research center (hsrc). Hsis is designed to provide a detailed systemlinking accident, roadway, and traffic data for problem analysis. The capabilities of hsis are described as well as the characteristics. Five problem analysis examples are given to illustrate how the hsis can be used as a problem solving tool. The article also discusses future enhancements to the sytem that might significantly improve the range of analyses for which the hsis can be used.