With the increase in traffic pressure,the traffic capacity of the intersection and the traffic situation of the intersection must be improved.In this paper,the intersection of Bailong Road and Nanyuan Road in Kunming City is taken as the research ob-ject.The Webster signal timing method is used to optimize the signal timing of the target intersection to reduce vehicle delay,queue length and environmental pollution,etc.The intersection is analyzed by VISSIM simulation,and the average queue length,delay time,carbon monoxide emissions,nitrogen oxide emissions,parking time,and other data before and after optimization are compared.The results show that the average queuing length is reduced by 25％,the delay time is reduced by 23％,the carbon monoxide e-missions are reduced by 6.9％,the nitrogen oxide emissions are reduced by 6.9％,and the parking time is reduced by 24.7％.
维普
万方数据