Abstract:In order to effectively prevent and reduce the operation accidents at the intersections of urban tram road, taking 34 classic urban tram safety accident data as the data set, the risk factors related to tram operation at road intersections are analyzed. By utilizing the analysis on the historical accident data, the operation risk factors are divided into 4 kinds of personnel, equipment, environment and management. And a risk evaluation system for urban tram operation is built. In order to make the research conclusions uniform and reliable, and reduce the influence of subjective factors, combined with the advantages of accident tree structure importance and traditional analytic hierarchy process (AHP), the accident tree (FTA) -improved hierarchical analysis evaluation method is proposed to analyze each risk factor. The degree of influence of risk factors on the top event is quantized in the analysis of tram operation risk factors by this method. At the same time, the stereotype of staff on the factors causing the safety accident risk of tram is optimized to accurately improve its operation safety. The relative suggestions are put forward according to the research results.