基于混合整数规划的相邻交叉路口信号协调控制

建立一个基于混合整数规划的相邻交叉路口信号协调控制模型，该模型适用于两路口之间距离比较短的情况。根据上游路口的驶入率和周期初路段上的车辆数，对该路段上的车辆运行情况进行了研究，得到了一个周期内该路段的车辆数变化以及下游路口车辆驶出累积数，并通过协调上游路口信号灯变换时间来控制下游路口车辆周期内的驶出数量。本文与现有文献的不同之处在于，是以固定时间内下游路口驶出的车辆数为目标函数进行建模，给出了模型的一些重要性质，并通过算例对模型的协调控制能力进行了仿真研究。

A Mixed Integer Programming Formulation for Coordinated Traffic Control of Adjacent Intersections

In this paper,an adjacent intersections traffic light coordinated control model based on mixed integer programming formulation is proposed which applies to short-link intersections.According to arrival rate in the upstream intersection and number of cars at the beginning of period on the road,the paper investigates the evolution of the number of cars on the road and the number of passed cars of the downstream intersection.By switching the red time of upstream signal,we can control the number of passing vehicles of downstream intersection.The contribution of the paper is that a special objective functions differing from other literatures is adapted i.e.,the number of vehicles departing from downstream intersection in the fixed cycle.Finally,the paper gives some properties of this model and makes simulation research for the model's ability of coordinated control by an example.