为满足不同周期子区间协调控制的需要，提出对不同周期的信号交叉口实行大 周期内协调控制的思想． 通过分析不同周期下相邻交叉口间的车流到达规律，利用交通波 理论建立了不同周期相邻交叉口间的延误模型，并提出了基于最小延误的不同周期交叉 口间的相位差优化方法． 最后以两个不等周期时长交叉口为例，利用 VISSIM 仿真对优化前 后的协调控制效果进行对比． 仿真结果表明，相位差优化后车辆的平均延误降低了13．60%， 平均停车次数降低了 6． 43%，以此证实了该方法的有效性． 文中研究为解决不同周期子 区间的协调控制问题提供了新的思路与方法．

In order to implement the coordination control between sub-regions with different signal cycles,the idea of coordination control between intersections with different signal cycles in a large period is proposed.Then,by ana- lyzing the traffic arrival law between intersections with different signal cycles,a delay model based on the traffic wave theory is established,and an offset optimization method based on the minimum delay is proposed.Finally,by taking two signalized intersections with different cycle lengths as the examples,a VISSIM simulation is performed to analyze the effect of coordination control in a comparative way.Simulated results show that,after the coordination control,the average vehicle delay and the average number of stops decrease by 13. 60% and 6. 43%,respectively,which means that the proposed method is effective.This research provides a novel idea as well as a method for the coordination control between sub-regions with different signal cycles.