双向两车道道路局部施工时的车辆拥堵管制方法研究

A Traffic Flow Control Method for Two-way Two-lane Roads with One Lane Occupation Construction

驾驶人为因素是导致城镇交通拥堵的主要原因,特别是双向两车道狭窄路段施工时的有效交通管制以减少交通拥堵显得尤为重要。对典型的局部施工的双向两车道道路进行建模,设一侧施工路段长100m,基于两端各100m范围内监测路段的车流量进行监测和统计分析。基于聚类分析方法根据车辆位置将监测路段车流各分为3车段,并基于层次权重对各车段进行加权,提出通行需求系数W并确定车辆管制策略,即对通行需求系数大的一侧先行放行,每次放行一个车段。实际应用中可通过车联网节点或手机APP方式获取监测路段内车辆位置和数量。最后进行了典型车流量输入情况下的交通管制仿真与分析。结果表明提出的方法能够有效提高施工路段的车辆通行效率,方法是有效可行的。

The driving behavior is the main cause of traffic jams in urban areas, so it is necessary to reduce traffic conges -tion by the effective traffic control in the two-way two-lane narrow road section, especially when it is under construction. Firstly, a typical model for the two-way two-lane roads was built, in which the length of the construction road was assumed as 100m, and the range for monitoring the vehicle flow was also 100m from each end of the construction section. Secondly, the k-means cluster analysis method was employed to separate the vehicle flow in each monitor section as 3 groups based on the vehicle positions, and the weights of each vehicle group were determined by the hierarchy weight method, so the traffic demand coefficient W was put forward to indicate the urgency of which side vehicle to pass through the construction section. Then, the traffic control strategy was determined, in which the side with the big W value would be guided to pass through in priority, and one vehicle group each times. Actually the numbers and positions of each vehicle would be obtained in real time by the bus network nodes or self-developed APP software. Finally, the traffic control simulations and analysis were conducted under the typical vehicle traffic flow situations. The results show that the method proposed in this paper can effectively improve the traffic efficiency of vehicles in the construction section, and the method is effective and feasible.