In an effort to build China into a country with great transport strength,traffic safe-ty has been placed in a pivotal position.However,there is no appropriate signal timing plan for pedestrian crossings with large traffic flow,so road safety problems involving pedestrian cross-ings frequently occur.Based on the original Webster signal optimization algorithm,this paper proposes a traffic signal design scheme suitable for high-volume pedestrian crossings.Taking the intersection in front of the main campus and the new campus of Taiyuan University of Science and Technology as an example,the VISSIM microsimulation software and the surrogate safety as-sessment model(SSAM)were used to verify the feasibility of the signal timing method,and the traffic safety evaluation was carried out.The results show that the optimized signal timing re-duces the average delay of the target road by 44.60%and the total number of traffic conflicts by 32.53%.The proposed optimization scheme reduces the delay of vehicles at the intersection,im-proves the safety of pedestrians crossing the street,and can provide theoretical reference for ur-ban traffic management.
NETL
NSTL
维普
万方数据
