基于改进遗传算法的交通信号配时优化模型  

An optimization model of traffic signal cooperative timing based on improved GA

作　　者：李珣[1] 刘瑶[1] 周健[1] 刘薇[1] 洪良[1] 

机构地区：[1]西安工程大学电子信息学院,西安710048

出　　处：《工业仪表与自动化装置》2017年第4期125-130,共6页Industrial Instrumentation & Automation

基　　金：陕西省自然科学基础研究计划项目(2016JQ5106);西安工程大学博士科研启动基金项目(BS1507);陕西省教育厅专项科研项目(16JK1342)

摘　　要：针对当前交叉口信号配时方案相互孤立,未能有效达到区域交通控制最优化的问题,提出一种面向多交叉口信号控制方案的优化配时模型。文章分析了多交叉口交通流特征,利用元胞传输模型作为基础模型对多交叉口间受控的交通流进行模拟。根据多交叉口路网中影响交通量的被控参数特征,以及交通信号控制准确性、实时性等需求的分析,提出改进的遗传算法。结合DISCO交叉口数值模拟软件,对文中模型进行了数值模拟。数值模拟结果表明:文中模型能够通过配时调节适应交叉口间交通流的变化,道路车辆平均延迟时间较其他方案小,是一种实际配时控制器可采用的优化模型。This paper proposed an optimized timing model for multi-intersection signal control,aiming at the problem of urban multi-intersection signal timing can＆#39;t control regional traffic optimized.Using cell transmission model to simulate and analyze the multi-intersecting traffic flow.The Classical genetic algorithm had been improved,according to the characteristics of the controlled parameters,and analyzed the accuracy and real-time of the traffic signal control.The model was simulated combined with DISCO simulation software.The numerical simulation results show that the model can adjust the traffic flow by adjusting the timing,and the road vehicle density is smaller than other schemes,it is an optimization model that can be used in the actual time controller.

关 键 词：交通工程 遗传算法 交通信号配时 元胞传输模型 

分 类 号：TP495.1[自动化与计算机技术]