OPTIMIZATION OF COORDINATED TRAFFIC SIGNAL TIMINGS IN URBAN ROAD NETWORK
OPTIMIZATION OF COORDINATED TRAFFIC SIGNAL TIMINGS IN URBAN ROAD NETWORK
复制标题
城市道路网中协调交通信号配时的优化
DOI：
10.5687/iscie.11.364
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
J. Leo
中科院分区：
文献类型：
--
作者：
T. Oda;J. Leo
本文提出了一种交通信号配时优化协调的新方法。该优化基于日本城市道路网络中车辆检测器提供的信息。传统方法的不足之处在于，周期长度和分割仅以关键交叉口的行为为特征，并且沿主要道路的偏移量是从一小组规定的模式中选择的。在该方法的第一步中，通过最小化由一系列交叉口组成的子区域的总交通延迟来获得周期长度和分割。在第二步中，偏移量是通过最大化带宽来确定的，带宽是一个周期的分数，在这个周期中，车辆可以不停车地通过子区域的所有十字路口。仿真实验结果表明，与传统方法相比，该方法显著缩短了队列长度。
This paper describes a new method of optimally coordinating the traffic signal timings. The optimization is based on the information available from the vehicle detectors in urban road networks in Japan. The conventional methods are deficient in that the cycle length and the split are characterized only by the behavior of critical intersection, and offsets along a major road are chosen from a small set of prescribed patterns. In the first step of the proposed method, the cycle length and the split are obtained by minimizing the total traffic delay in a sub-area which consists of a series of intersections. In the second step, the offsets are determined by maximizing the bandwidth that is the fraction of a cycle in which vehicles may pass through all intersections in the sub-area without stopping. The results of simulation experiments indicate that the proposed method reduces the queue length significantly in comparison with the conventional methods.