复杂交通节点的车流优化控制方案

Research on Optimal Traffic Flow Control Scheme for a Complex Traffic Node

摘要: 随着城市汽车保有量激增，交通系统负载过重，交通拥堵已成常态，设法缓解交通拥堵问题刻不容缓。本文研究复杂交通网络节点的车流量优化控制方法，旨在提升节点车流运行效率。首先，我们采集了诚毅学院附近的各个路口高峰时段的车流量数据；接着，根据各道之间车流实际变换情况，引入车辆变道的转换系数，利用差分方程基本理论，建立复杂交通节点的车流量动态模型；然后，利用采集的数据验证模型有效性和可靠性；最后，根据实际情形，给出了车流优化控制方案，并评测了方案的实际效果。

Abstract: With the rapid increase of urban car ownership and the overload of the transportation system, traffic congestion has become the norm. It is urgent to try to alleviate the problem of traffic congestion. This paper studies the optimal traffic flow scheme for a complex traffic node, aiming to improve the efficiency of the traffic flow at this node. Firstly, we collected the traffic flow data of each lane near Chengyi College during peak hours; secondly, according to the actual change of traffic flow between the lanes, we establish the dynamic model of traffic flow using the conversion coefficient of lane change and the basic theory of difference equations; thirdly, we verify the validity and reliability of the model by the collected data i; finally, according to the actual situation, we present the optimal control scheme of traffic flow, and evaluate the actual efficiency of the scheme.