过饱和交叉口信号配时方法的优化及实证研究

在城市道路交叉口交通管理的信号控制常用信号配时方法,对于饱和度较低的交叉口有较好的交通调控作用;但实际交通管理的高峰时段常常会出现过饱和交叉口,信号配时方法就显示出不适应性。针对饱和交叉口的交通特性进行分析,采用了一种考虑进口道排队长度的信号配时模型,通过与传统配时模型的比较并进行了实例验证,得出这种模型更适合对过饱和交叉口的交通控制。

Optimization Methods of Signal Timing at Over-saturation Intersection and Empirical Study

It is commonly used signal timing in the city intersection traffic signal control management and has better traffic regulation at unsaturation intersection.But in real life applications,it may often apperas oversaturated intercection during peak hours and the signal timing method demonstrates the adaptability at that time. This paper aimed at the traffic characteristics of the over-saturation intersection,using a timing model that considered about the import road queue length and have a instance validation,finally compared with the traditional signal timing model,this paper's method is better suited to the traffic control of over-saturation intersection.