针对单交叉路口多相位交通流建立了一种实时动态模型 ,并简要介绍了一种实时遗传算法优化控制方法 .通过对本周期及前一个周期的车流量进行实时测量 ,采用线性预估方法 ,对下一个周期的车流量进行预估 ,以最大通行能力为路口模型控制性能指标 ,从而确定下一周期的相位配时方案 .采用 C语言编程进行实时仿真实验 ,仿真结果表明 ,实时优化性能良好、性能稳定.

A real time dynamic model on multiphase traffic flows is conducted in an urban intersection and an optimal control method with Genetic Algorithms (GA) is developed in this paper. Using data of the traffic flows in the current cycle and the cycle before, the traffic flows in the next cycle may be estimated through the linear pre-estimation method and each phase time in next cycle is determined with GA optimizing method. A simulation experiment for the traffic model at a four phase intersection is also perf...