DEVELOPING SAFETY MANAGEMENT TOOLS FOR STATE DEPARTMENT OF TRANSPORTATION

摘要

Two different safety management tools had been recently developed for the CaliforniaDepartment of Transportation (Caltrans): one is the Continuous Risk Profile (CRP) approachwhich is a network screening procedure, and the other is the California Safety Analyst (CASA)which is a web-based application designed to assist state safety engineers in conducting safetyinvestigations and documenting their findings. This paper provides a qualitative description ofthese two tools and also summarizes feedback from over 100 Caltrans safety engineers whoattended the demonstration of the web-based application. Findings from empirical analysis andthe survey revealed that CRP can significantly reduce the false positive rate and that CASA cangreatly improve the efficiency of traffic safety investigations. However, there still remainmisunderstandings about the relationship among CRP, other methods explained in HighwaySafety Manual, and different safety management tools. These misunderstandings imposechallenges for the deployment of CRP and CASA in California and these challenges are alsodiscussed in the paper.