非对称相位相序方式下的双向绿波协调控制图解法的优化

Optimization of Bidirectional Green Wave Coordinated Control Graphical Method under Asymmetric Phase Sequence Mode

为缓解交通拥堵,减少车辆在交叉口的延误,利用干道双向绿波协调控制中的时间-距离分析图,找出制约双向通过带带宽的瓶颈交叉口,经过对主干道交叉口相位差和相位相序的改善,对经典的双向绿波图解法进行优化。算例分析表明,相比于经典的双向绿波图解法,优化后的双向绿波协调控制图解法能确保干道协调控制系统获得更大的绿波带宽,绿波协调控制效果得到了有效提升,两个方向的带宽分别增加了56%和33%,可以有效地改善交通流的运行状态,且图解法简单直观、方便应用,有利于工程应用。

To ease traffic congestions and reduce vehicle delays at intersections, the time-distance analysis diagram in coordinate control of arterial road bidirectional green wave is used to find out the bottleneck intersections that restrict the two-way green wave bandwidth. By improving the existing phase sequence and phase difference of arterial road intersections, the classic bidirectional green wave graphical method is optimized. The calculation example shows that compared to the classical two-way green wave graphical method, the optimized bidirectional green coordinated control graphical method not only can ensure arterial road coordinated control system obtaining greater green wave bandwidth, which has effectively improved the green wave coordinate control effect and increased the bandwidth in two directions by 56% and 33% respectively, but also can effectively improve the operation condition of the traffic flow, and graphical method is conducive to engineering applications because of the advantages of convenience and perspicuousness.