基于Synchro的畸形交叉口信号配时优化分析

介绍信号配时模型的现有研究成果，分析Synchro仿真系统中信号配时优化模型、用于延误计算的百分比延误方法（PDM）模型、停车次数计算模型、通行能力计算模型和服务水平等模型。以重庆市临江门交叉口为例，在调查实际数据的基础上结合进口道调整对当前信号配时方案进行优化研究。经过Synchro系统优化后，最大饱和度由1．19减小到1．01，平均控制延误由68．5S减少到36．4s，服务水平由E级提高到D级。结果表明应用Synchro系统可有效提高路口的控制效果。

Timing Optimization on Signalized Deformity Intersection by Synchro

The existing research result on signal timing model was introduced generally. Then, the signal timing optimization model, PDM percentile delay method model, parking rate calculation model, capacity calculation model and level of service （LOS） model in Synchro software system wear analyzed. Taken the Linjiangmen intersection in Chongqing for example, the real-time timing scheme of the intersection was op- timized completely. The maximum V/C ratio may decrease from 1.19 to 1.01, the average control delay may decrease from 68. 5 s to 36.4 s and the LOS may be improved from Level E to D after Synchro system optimization. The results show that the application of Synchro system can improve the controlling effect of the intersection effectively.