Traffic Organization Optimization and Micro-Simulation Evaluation for Metro Work Zone: A Case of Nanmendou Station in Fuzhou

Due to its large-scale construction and long-term cycle occupation of certain road work zones, the subway construction work zone usually has a great impact on road operation. This paper takes the construction work zone of the Nanmendou station of the interchange points of the two lines of the Fuzhou metro as an example, and collects traffic data through on-site investigations, and carefully analyzes the flow and signal timing of each flow direction at the upstream intersection of the construction section during the peak period. When traffic congestion occurs at the construction section, the traffic diversion scheme is used to optimize the signal timing, and VISSIM simulation software is used to implement and evaluate the plans to determine the upstream section when traffic congestion occurs during the peak period. The optimal plan for traffic organization at intersections is to ease traffic congestion on the construction section.