作　　者： ; ; ; (胡健萌）;

机构地区： 同济大学交通运输工程学院

出　　处： 《吉林大学学报（工学版）》 2007年第2期319-324,共6页

摘　　要： 提出了一种基于消散拥堵和系统总出行时间最小的双目标诱导控制协同优化模型,算法引入饱和度的概念,采用小步距微量调整信号配时、试算优化的方法,适当加载或卸载交通量,优化交叉口信号配时,使交通流在不断反馈与不断调整过程中达到最优。采用VISSIM建立模拟路网进行了协同算法试验,并对协同实施效果进行了评价,结果表明:在进行3次协同后拥堵基本消散,经过第4、5次协同能实现系统总行程时间尽可能小。 A double-objective optimization model for traffic flow guidance coordinated with signal control to dispel traffic congestion and minimize total travel time of the road network was suggested. An index of congestion measurement was introduced in the model algorithm, traffic signal timing was adjusted in short traffic flow steps, the traffic flow was uploaded or downloaded at links by trial optimization, signal control was optimized at intersections, and traffic flow was optimized in the process of its feedback and adjustment. A simulation road network was built by means of the software VISSIM, the coordinated algorithm was tested in the network, and its efficiency was evaluated. The results show that traffic congestion was almost dispelled after 3 coordination intervals and after 4th and 5th coordination the minimization of the total travel time of the system was realized.

关 键 词： 交通运输系统工程 协同模型 准最优算法 交通流诱导 交通控制

领　　域： [交通运输工程] [交通运输工程]