Abstract
This paper describes the design and building of a computer geobase systems, Automap, which converts traffic crash location descriptions into rectilinear coordinates, as well as the utilization of these coordinates to produce maps of the crash patterns. This system is versatile in both the types of subsets that can be created as well as the maps that ate produced. The biggest advantage of Automap is the simplicity of operation in constructing maps, which frees the user for concentration on the analysis of traffic crash phenomena without the burden of having to know the technical details of a computer mapping system.