通过分析实际道路交通状况,在合理假设的基础上,建立了孤立十字、丁字交叉路口、三个交叉路口线状区域以及六个交叉路口网络状区域的交通信号实时配时数学模型,利用Matlab产生满足泊松分布的车流量实时序列,按照优化目标进行了算法的设计和编程,得到了相应的数值结果,并对优化结果进行了讨论. By analyzing the actual traffic conditions of the road, based on the reasonable assumption, a real-time traffic time mathematic model of traffic signal with isolated crossroad, T-shaped intersection, linear area at three intersections and network area at six intersections was established. Matlab was used to generate According to the real-time sequence of traffic flow of Poisson distribution, the algorithm is designed and programmed according to the optimization goal. Corresponding numerical results are obtained and the optimization results are discussed.