干线局部拥堵的绿波带与红波带协调控制策略

发布时间：2018-05-08 07:30

本文选题：城市交通干线 + 局部拥堵　；参考：《城市交通》2017年01期

【摘要】：中国城市机动车保有量快速上升,导致交通需求与供给之间的矛盾日益突出,城市交通拥堵日益严重。针对干线局部拥堵提出绿波带与红波带协调控制策略。其原理是:通过绿波带控制,利用下游交叉口和路段,对瓶颈交叉口的拥堵车流进行快速疏散和卸载;通过红波带控制,运用上游交叉口和路段的空间优势,有效地将到达瓶颈交叉口的车流分别截流在上游的交叉口和路段,延长其到达瓶颈交叉口的行程时间,以防止瓶颈交叉口的拥堵蔓延和上溯。选择交叉口进口道协调相位饱和度和路段排队长度比作为评估指标,讨论协调控制策略的启动与结束条件。通过交叉口关联度模型分析协调控制的范围,并对协调控制的绿波带和红波带进行控制方案设计。算例分析表明,绿波带与红波带协调控制策略可以明显降低车辆在干线交叉口上的平均停车次数(-15%)和平均延误(-27%),提高干线交通运行效率。
[Abstract]:The rapid increase in the number of motor vehicles in Chinese cities leads to the increasingly serious contradiction between traffic demand and supply, and the increasingly serious urban traffic congestion. A coordinated control strategy of green and red band is proposed for local congestion of trunk line. The principles are as follows: by controlling the green wave band, using the downstream intersections and sections of the road, the congested traffic flow at the bottleneck intersection can be quickly evacuated and unloaded, and by the control of the red wave band, the spatial advantages of the upstream intersections and sections will be utilized. The traffic flow to the bottleneck intersection is effectively cut off at the upstream intersection and the section of the road, and the travel time to the bottleneck intersection is extended to prevent the congestion spread and backtracking of the bottleneck intersection. The coordinated phase saturation and queue length ratio at the intersection entrance are selected as the evaluation indexes to discuss the starting and ending conditions of the coordinated control strategy. The range of coordinated control is analyzed by the correlation degree model of intersection, and the control scheme of green and red waves is designed. The analysis of examples shows that the coordinated control strategy of green and red waves can obviously reduce the average parking times and delay of vehicles at the main road intersection and improve the traffic efficiency of the trunk line.
【作者单位】：西南交通大学交通运输与物流学院;
【分类号】：U491.54

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