城市过饱和路网的偏好多目标相容优化控制  

Urban oversaturated traffic network control based on preference multi-objective compatible optimization control

作　　者：陈娟[1] 袁长亮[2] 

机构地区：[1]上海大学悉尼工商学院,上海201800 [2]交通部公路科学研究院,北京100088

出　　处：《计算机工程与应用》2011年第10期13-16,45,共5页Computer Engineering and Applications

基　　金：国家自然科学基金No.60674070;交通部公路院科研创新和人才培养项目(No.2007-9023)~~

摘　　要：针对城市过饱和路网的交通信号控制问题,提出将总延误分为主线路段延误和次线路段延误的划分方法,将控制问题描述为冲突的多目标控制。针对冲突多目标控制问题中最优解不唯一,而传统优化方法中一次运行只能得到一个最优解的问题,提出了一种基于偏好的相容优化控制算法:利用偏好信息动态指引寻优的方向,在偏好区域内获得更多有价值的解;提出基于偏好的目标选择函数,保证控制解在偏好区域内的稳定性。在仿真环境中对一个11个交叉口的城市过饱和路网进行实时控制,结果表明,提出的偏好相容控制算法的效果优于定时控制方案。To solve the traffic control problem on oversaturated linear network,the total delay is divided into two parts：the feeding delay and the non-feeding delay,and the control problem is formulated as a conflicted multi-objective control problem. According to the character that the optimal point is not single in the conflict multi-objective control problem and optimal solutions cannot be simultaneously obtained by traditional optimization methods in a single run,a new compatible control algorithm based on preference is proposed,which incorporates user’s preference information into optimization process for obtaining dense Pareto solutions in preference region,and a new selection function is defined to make control objectives stabilized in this region.The proposed compatible optimization control algorithm is used to solve the oversaturated traffic linear network control problem in a core area of seven junctions under the simulation environment.It is proved that the proposed algorithm can handle the oversaturated linear network control problem effectively than the fixed-time control method.

关 键 词：相容优化控制 多目标优化 偏好信息 过饱和路网 交通控制 

分 类 号：TP13[自动化与计算机技术—控制理论与控制工程]