Using GIS in the Analysis of Truck Crashes. Highway Safety Information System

摘要

Computerized crash analysis systems in which crash data, roadway inventory data,and traffic operations data can be merged are used in many States and municipalities to identify problem locations and assess the effectiveness of implemented countermeasures. By integrating this traditional system with a geographic information system (GIS) which offers spatial referencing capabilities and graphical displays, a more effective crash analysis program can be realized. In a recent Federal Highway Administration-sponsored study, a crash referencing and analysis system within a GIS was developed within the Highway Safety Information System (HSIS) State of North Carolina for the area of Wake County and provides the functions needed to edit both tabular and spatial crash and roadway data as well as perform crash analyses related to intersections, roadway segments, and special highway features such as bridges. A complete description of the GIS-based crash referencing and analysis system is provided in a separate HSIS summary report.