摘要
为了缩减车辆在交叉路口的等待时间和提高交叉路口的通行能力,提出一种基于局部最优策的实时车辆调度优化算法.首先计算每个相位的绿灯时间及在该时间内允许通过的车辆数,然后采用局部最优策略选择相位,使该相位内的车辆优先获得通过交叉路口的路权.仿真结果表明,在相同的交通流量下,所有车辆在交叉路口的平均等待时间低于现有的算法.
A real-time vehicle scheduling optimization algorithm,which is based on the local optimal strategy,is proposed to reducethe waiting time of all vehicles and improve traffic capacity at intersection road.The algorithm estimates firstly the green time of every signal phase and the number of vehicles allowed to be passed during the respective period.Then,it selects the signal phase according to the local optimal strategy so that vehicles in the corresponding phase can obtain priority of the right of way through the intersection.The simulation result shows the average waiting time of all vehicles at intersection is lower than the existing algorithms under the same traffic flow.
作者
刘文彬
杨波
阎纲
李香宝
LIU Wenbin;YANG Bo;YAN Gang;LI Xiangbao(School of Information Technology and Management, Hunan University of Finance and Economics, Changsha, Hunan 410205, China)
出处
《宜宾学院学报》
2017年第12期47-51,共5页
Journal of Yibin University
基金
湖南省社科基金项目(16YBA050)
湖南省教育厅科学研究项目(16C0270
15C0229)
关键词
智能交通
车辆实时调度
局部最优策略
交通拥堵
交通信号控制
intelligent transportation
vehicle real-time scheduling
local optimal strategy
traffic congestion
traffic signal control