Computer Engineering and Applications ›› 2008, Vol. 44 ›› Issue (11): 13-15.

• 博士论坛 • Previous Articles     Next Articles

Optimizing method of traffic signal off-line timing based on particle swarm algorithm

WANG Hai-qi1,WANG Jin-feng2   

  1. 1.College of Geo-resources and Information,University of Petroleum(East China),Dongying,Shandong 257061,China
    2.State Key Lab of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China
  • Received:2007-11-28 Revised:2007-12-27 Online:2008-04-11 Published:2008-04-11
  • Contact: WANG Hai-qi

一种基于粒子群的交通信号离线配时优化方法

王海起1,王劲峰2   

  1. 1.中国石油大学(华东) 地球资源与信息学院,山东 东营 257061
    2.中国科学院 地理科学与资源研究所 资源与环境信息系统国家重点实验室,北京 100101
  • 通讯作者: 王海起

Abstract: 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.

Key words: traffic signal off-line timing, particle swarm optimization, microscopic traffic simulation

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于不同的粒子,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,最后得到的具有最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。

关键词: 交通信号离线配时, 粒子群优化, 微观交通模拟