基于叠加相位的干线绿波协调控制方法研究  

Study on Green Wave Coordination Control Method Based on Ripple Changes

作　　者：张奕源 李进龙[1] 李祥尘 周伊冰 ZHANG Yi-yuan;LI Jin-long;LI Xiang-chen(School of Transportation and Logistics,Southwest Jiaotong University,Chengdu 611756,China)

机构地区：[1]西南交通大学交通运输与物流学院

出　　处：《交通运输工程与信息学报》2019年第3期52-61,共10页Journal of Transportation Engineering and Information

摘　　要：现有的绿波协调控制图解法和数解法存在干线交叉口处的绿灯启亮时刻难以与对应方向的车流到达时刻相匹配的问题,造成了部分时空资源的浪费,压缩了双向的绿波带宽,影响了干线协调控制的效果。针对这一问题,提出基于叠加相位设计方法的干线绿波协调控制方法。该方法在传统方法求解结果的基础上,根据绿波带的设计速度,插入叠加相位,灵活地错开调整交叉口沿干线的两个行驶方向的绿灯启亮时刻,更好地匹配其与对应方向车流的到达时间;以最大化双向绿波带宽为目标建立规划模型,并利用二分法设计求解算法,实现对最大绿波带宽和各交叉口配时的计算。研究结果表明:基于叠加相位的干线绿波协调控制方法可以实现在不改变绿波设计速度的情况下,有效增加双向绿波带宽,减小干线延误,缓解交通拥堵;相较于传统的绿波协调控制方法,该方法将绿波带宽提高了140%,将干线的平均延误减小了86.2 s,有效缩短了各交叉口的行程时间。The main problem with existing graphic methods and algebraic methods for green wave coordination control is that the green light-on time at the arterial intersection is difficult to match the arrival time of the traffic in the corresponding direction,This wastes space and time resources,and compresses the bidirectional bandwidth,thus undermining the effect of arterial coordinated control.To address this problem,a green wave coordination control method based on ripple changes is proposed.Compared with the results of the traditional method,this new method inserts the ripple changes according to the design speed of the green waves,and flexibly shifts the green light-on time in the two directions along the arterial,which can appropriately match the arrival time of the traffic flow in the corresponding direction.The programming model was established to maximize the two-way bandwidth.The bisection method was used to design the algorithm,which can calculate the maximum bandwidth and the timing at each intersection.The results show that the proposed green wave coordination control method based on ripple changes can effectively increase the bidirectional bandwidth,reduce the average delay,and ease congestion without changing the green wave design speed.Compared with the traditional bandwidth control method,the new method increases the bandwidth by 140%,reduces the average delay of the arterial by 86.2 s,and shortens the travel time at each intersection effectively.

关 键 词：交通工程 绿波协调控制 叠加相位 双向绿波带宽 相位优化 

分 类 号：U491.4[交通运输工程—交通运输规划与管理]