Signal Timing Optimization Design of Isolated Intersections

摘要

This paper proposes the optimization design of intersections from three aspects: channelization optimization design, optimal design of signal timing, and simulation evaluation. Through traffic data investigation and data analysis with the theoretical method and VISSIM simulation method, two channelization plans were presented, and corresponding signal timing plans were provided by using the Webster method and SYNCHRO, respectively. Then the traffic simulation models for optimized plans were established to evaluate the optimization efficiency and to determine the optimum design. By comparing the simulation results of the old and improved plans, this study concluded that the new plan can improve the level of service at the intersection.