The invention provides an intersection traffic signal scheme optimization method based on queuing dissipation time. The method comprises the steps: adjusting and determining actual green time demandsof each entrance lane flow direction based on the green time demands of each entrance lane flow direction, green light idle duration and the queuing dissipation time through taking the queuing dissipation time as an increment and a decrement; and calculating the green light duration of a phase stage under each group of phase sequence schemes for the to-be-selected phase sequence scheme, and determining an optimal scheme based on the period duration. According to the method, compared with a traditional green time demand solution scheme, the green time demand can be effectively adjusted, the green time of the entrance lane flow direction is ensured to satisfy vehicle traffic and a long-time green time idle condition does not exist, and a green time demand value is optimized; and the optimalphase sequence and the optimal timing scheme are selected by considering and comparing the to-be-selected phase sequence schemes so that flexibility of traffic signal scheme configuration is greatly improved, and the optimal signal control scheme can be selected for different control stages.
本发明提供一种基于排队消散时间的路口交通信号方案优化方法,基于各进口道流向的绿时需求、绿灯空放时长和排队消散时间,以排队消散时间作为增减量,调整确定各进口道流向的实际绿时需求;针对待选相序方案对每一组相序方案下相位阶段绿灯时长计算,基于周期时长确定最优方案;本发明方法,对比传统绿时需求求解方案,能够对绿时需求有效调整,确保进口道流向绿时既能满足车辆通行又不存在长时间绿时空放情况,将绿时需求值达到最优;并考虑对比待选相序方案,选取最优相序和最优配时方案,大大提高了交通信号方案配置的灵活性,可为不同控制阶段选取出最优的信号控制方案。
Intersection traffic signal scheme optimization method based on queuing dissipation time
基于排队消散时间的路口交通信号方案优化方法
2020-07-17
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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