中文摘要：

提出了一种基于粒子群的交通信号离线配时优化方法，采用实数编码表示区域内各信号交叉口的各相位绿灯时间，不同的配时方案对应干不同的粒子，粒子的适应度利用微观交通模拟获取的总延迟时间进行评价，最后得到的具有裂小延迟时间的粒子即为最优配时方案。与已有的离线配时技术相比，提供了一种编码形式简单、参数较少、计算速度较快的信号配时智能优化方法。

英文摘要：

An optimizing method of traffic signal off-line timing based on particle swarm algorithm is proposed.Real-coded plan is used to all phases＇ green time of every signalized intersection in traffic network ,and different timing plan is correspondent to different particle,and the fitness of a particle is evaluated through total delay time of microscopic traffic simulation,and finally the particle with minimal delay time is the optimal timing plan.Compared with other existing signal off-line timing methods,this paper provides an intelligent optimizing method with simpler coding,less parameters and more fast calculating speed.