摘要
为探讨城市干道双向协调控制信号相位差优化方法,基于元胞传输模型(CTM),建立了车辆实际运行状态的城市干道交通流模型与城市干道信号协调控制相位差优化模型;采用免疫遗传算法,提出了使城市干道双向信号协调控制系统车辆总延误最小的最优相位差优化方法;运用MATLAB 7.0编程建立的实验平台,对该模型及其优化方法进行仿真验证。结果表明:该相位差优化方法得到的车辆平均延误分别比传统图解法、数解法减少26.2%,17.3%。
In order to research the offset optimization method of trunk road signal coordinated control,the traffic flow models closer to actual vehicle motion state and the signal coordinated control optimization models of an urban trunk road were constructed,based on cell transmission model( CTM).With the help of the immune genetic algorithm( IGA),the offset optimization method of two-way trunk road signal coordinated was put forward.Through the simulation experimental platform estbalished by MATALB 7.0 programming,the models and optimization methods were verified.Research results show that the average vehicle delay obtained by the optimization method reduces by 26.2% and 17.3% respectively,compared with those got by the traditional graphic solution and numeric solution methods.
出处
《重庆交通大学学报（自然科学版）》
CAS
北大核心
2013年第5期979-984,1017,共7页
Journal of Chongqing Jiaotong University(Natural Science)
基金
重庆市重大科技专项(CSTC-2009AA6039)
重庆市交通运输工程重点实验室开放基金项目(2011CQJY004)
关键词
交通工程
相位差
优化方法
元胞传输模型
干道协调控制
免疫遗传算法
traffic engineering
offset
optimization method
cell transmission model(CTM)
trunk road coordinated control
immune genetic algorithm
