考虑速度波动区间的城市干线双向绿波协调控制模型

城市主干道交通量的增长使干线协调控制受到越来越多城市的青睐,而传统的干线协调控制模型主要基于速度均值进行绿波方案设计。考虑到车辆在实际的行驶过程中受各种因素的影响速度存在一定的波动,以95%置信区间下的绿波设计速度作为速度波动区间,在Asymmetrical Multi-BAND(AM-BAND)模型的基础上增加了速度波动区间约束,建立了考虑速度波动区间的干线协调控制模型,以获得最大绿波设计速度及最小绿波设计速度。算例分析与仿真结果表明,改进模型的平均行程时间、平均停车次数等评价指标得到不同程度的改进,带宽利用率提高,绿波协调控制效果得到改善。

A Two-way Green Wave Coordinated Control Model for Urban Arterial Line Considering Speed Fluctuation Interval

The increase of traffic volume of urban arterial roads makes the coordinated control of arterial lines favored by more and more cities, while the traditional arterial coordination control model is mainly based on the average speed during the design of green wave scheme. Considering that the speed of the vehicle is affected by various factors in the actual driving process, this paper took the design speed of green wave under 95% confidence interval as the speed fluctuation interval. Based on the Asymmetrical Multi-BAND (AM-BAND) model, the speed fluctuation interval constraint was added, and the arterial coordination control model considering the speed fluctuation interval was established to obtain the maximum green wave design speed and the minimum green wave design speed. The results of case analysis and simulation show that the evaluation indexes such as the average travel time and average number of stops of the improved model are improved to different extents, the bandwidth utilization rate is improved, and the green wave coordinated control effect is improved.