Combined with video data and VISSIM trajectory data,the traffic conflict PET(post-intru-sion time)index was extracted by using SSAM traffic conflict analysis software,and an over-threshold extreme model was constructed.The PET collision thresholds of buses and motor vehicles,buses and electric bicycles were calibrated,and collision prediction models were constructed.The results show that the thresholds are 0.66 s and 0.55 s for the conflicts between buses and motor vehicles and be-tween buses and electric bicycles,respectively.In the event of a traffic conflict,the probability of a collision accident is 5.04％and 9.30％,and the severity of the accident is slight and serious respec-tively.
关键词
城市交通/交通冲突/PET指标/极值模型/重现水平
Key words
urban transportation/traffic conflict/pet indicator/extreme value model/reproduction level
维普
万方数据