Safety evaluation method for pedestrians crossing street at signalized intersection considering secondary conflict of right-turn vehicles
In order to study the safety of pedestrians crossing the street during the second conflict between people and vehicles at signalized intersections,three signalized intersections in Kunming City,Yunnan Province were selected as the research objects,and the traffic conflict analysis software T-Analyst was used to obtain vehicle trajectory data and traffic conflict data.A multi-angle safety evaluation method was adopted,based on the DV framework to judge the initial situation of the person-vehicle conflict,the traffic conflict indicators PETS and PETH,the maximum rejection gap and acceptance gap,and the average crossing speed to analyze the safety of pedestrians crossing the street.The results show that compared with the secondary conflict,the initial conflict situation faced by pedestrians in the primary conflict is more dangerous,and the frequency of pedestrians choosing to cross the street at risk is also higher.There is no significant difference in the secondary human-vehicle conflict in the indicators such as vehicle crossing behavior,traffic conflict indicators PETS and PETH,maximum rejection gap,acceptance gap,and critical gap.However,the average crossing speed of the secondary conflict was significantly higher than that of the primary conflict,and the potential risk of pedestrian crossing was higher in the secondary conflict.
engineering of communications and transportation systemsecondary conflict of right-turn vehiclesignalized intersectionsafety evaluation
万方数据
维普
