Research on Expressway Accident Prediction Model in Long Downhill Sections
Recently,expressway accidents have occurred frequently,especially in the long downhill sections,but the research on the accident causes is rare.In this paper,according to the monitoring data from the Traffic Incident Management System(TIMS)of an expressway,the main cause of expressway accidents is the alignment factor of the road itself.Based on the accident subject,expressway accidents in long downhill sections can be divided into vehicle-vehicle collision,vehicle-road collision,and the vehicle itself.Three accident regression models were established to analyze the main and secondary causes of the accidents and clarify the influences of the change in the road alignment indexes on the accident amount.On this basis,a series of targeted measures and suggestions were put forward for improving traffic safety.
long downhill sectionaccident cause analysisaccident regression modelimprovement measure
NETL
NSTL
万方数据
