一种改进的基于合作调停的交通协调控制算法

缓解交通拥堵,增加交叉口通行能力的有效手段是交通信号控制.为了使车辆在穿越干道交叉口时尽量少的停留,协调交通信号控制的研究越来越成为热点.以智能体控制技术为基础,提出了基于合作调停的协调交通信号控制算法.将信号的协调模型化为分布式约束优化问题,应用最优异步部分交叉算法,通过调停手段得到最优的信号协调控制方案.仿真实验表明,基于合作调停的交通信号协调控制算法能够得到使系统费用最小的协调信号控制方案.

A Modified Coordinated Traffic Signal Control Based on Cooperative Mediation

Abstract：Traffic control is an effective measure to increase the capacity of junchons to alleviate tramc conges- tion. A class of these approaches deals with coordination of traffic lights in order to allow vehicles traveling in a giv- en direction to pass an arterial without stopping at junctions. Using multi-agent technology, a coordinated traffic signal control algorithm based on cooperative mediation is proposed. The coordination of traffic control is modeled as a distributed constraint optimization problem. The optimal asynchronous partial overlay（OptAPO） which is a coop- erative mediation based DCOP protocol is used to obtain the optimal strategy. The simulation results show that a strategy which can minimize the global costs can be obtained from the coordinated traffic signal control algorithm based on cooperative mediation.