Development of a safety analysis and an intersection infrastructure system

GIS and GPS technologies have found immense applications in the field of transportation engineering. Different features related to transportation safety are inventoried using these technologies. The databases so created serve as main source for safety analyses, decision making and reporting. Many different analyses tools are available to assist engineers, planners and policy makers in the process of improving transportation safety. GIS-based analyses tools provide tabular and graphic display, thereby expediting the analyses process and improving the spatial understanDing The advantages of such tools increase if they can be provided on the World Wide Web. One such software system that offers online analyses tool is the ArcIMS; This research is aimed at developing a GIS-based tool to inventory signalized intersection attributes. In addition, an internet based analyses system that utilizes the signalized intersection database and the crash database is developed. The tools provide number of choices to perform user-defined queries to generate specific results. The system is developed using Visual Basic .Net programming language. The applications developed here are demonstrated with the data available for the Las Vegas metropolitan area