Optimization Design of Intersection Traffic Organization: A Case Study in Zhenjiang

Intersections play an important role in the road network. The traffic organization of the intersections may affect the safety and efficiency of the entire road network. This paper takes the intersection of Tanshan Road-Longmai Road in Zhenjiang City as an example to study the optimization design of intersection traffic organization. First, traffic survey is conducted to analyze the current situation of the chosen intersection. The traffic organization issues of the intersection are summarized based on the traffic survey results. Second, by combing several specific methods such as intersection channelization, a complete optimization scheme is proposed to improve the traffic service of the intersection. Finally, VISSIM is used to simulate the traffic flow of the intersection before and after the optimization. The simulation results show that the optimization scheme reduces the average vehicle delay and maximum queue length. Besides, the delay time of the optimized intersection is shortened by 7 s.