关联信号交叉口排队长度计算模型

Queue Length Calculation Model at Adjacent Signal Intersections

摘要:

以相邻信号交叉口的最大排队长度为研究对象，分析了路段长度、相位差、绿信比等时空参数对路口最大排队长度的影响机理.基于交通波理论建立了最大排队长度计算模型，通过微观交通仿真实验对模型进行了验证，并提出了相邻信号交叉口时空协调指数的概念及其计算方法，分析了时空协调指数对相邻信号交叉口最大排队长度的影响规律.研究表明，该模型能定量计算相邻信号交叉口不同时空参数下的最大排队长度值，对相邻信号交叉口的时空协调设计具有指导意义.

Abstract:

This paper presents an analysis of the influencing mechanism of time space parameters such as link length, signal offset, splits and so on. Based on the maximum queue length at adjacent signal intersections. The calculation model of the maximum queue length based on the traffic wave theory is created, and the model is verified with microscopic traffic simulation experiments. Then, the concept and its calculation method of time space coordination index of adjacent signal intersections are proposed, and the influence of the law of the time space coordination index on the maximum queue length at adjacent signal intersection is analyzed. The results show that the model can calculate quantitatively the maximum queue length for adjacent signal intersections with time space parameters, and it’s significant in traffic design and optimization for adjacent signal intersections.