基于Synchro-VISSIM的干线协调控制优化研究

合理的配时和信号协调控制方案是提高道路通行效率和缓解交通拥挤的主要手段之一。结合交通组织优化改善措施，应用Synchro软件对泉州市津淮街的三个毗邻交叉口进行信号配时协调优化，并通过VISSIM仿真结果比较优化前后的干道信号协调控制的运行效果。结果表明：经过交通组织优化改善和信号配时优化后，自西向东方向，案例中3个交叉口的延误分别降低了51．9％、31．8％和65．5％，路段延误降低了27．9％，路段行程时间降低了21．7％。同时，各交叉口的平均排队长度也分别降低了61．6％、19．3％和19．2％，改善效果非常显著。

Coordinated Control Optimization of Arterial Road Based on Synchro-VISSIM

Reasonable timing and signal coordinated control system are the principal means to improve the efficiency of road traffic and alleviate traffic jams. The article applies the Synchro software to optimize timing and signal coordinated control system of three adjacent intersections in Jinhuai Street in Quarzhou City in combination with the traffic organization and improvement measures, and uses the results of VISSIM simulation to compare running effect of arterial roads before and after optimization. The results show that from west to east direction, the delay of the three intersections in the case are reduced by 51.9%, 31.8% and 65.5% respectively, link delay is reduced by 27.9%, the road travel time is reduced by 21.7% after traffic organization improvement and signal timing optimization. At the same time, the average queue length of each intersection is reduced by 61.6%, 19.3% and 19.2% respectively, and the effect is very significant.