论文标题
通过车辆排的改善城市交通吞吐量:理论和实验
Improving Urban Traffic Throughput with Vehicle Platooning: Theory and Experiments
论文作者
论文摘要
在本文中,我们提出了一种基于模型的预测控制(MPC)方法,用于在城市交通环境中进行车辆排。我们的主要目标是证明车辆排在交叉口下的吞吐量有可能显着增加吞吐量,这可能会在交通流中产生瓶颈。为此,我们的方法依赖于车辆连接:车辆到车辆(V2V)和车辆到基础设施(V2I)通信。特别是,我们引入了一个自定义的V2V消息集,该消息集具有速度预测,即对未来速度轨迹的预测,该预测使数量的车辆能够准确地保持短距离的距离,从而增加了吞吐量。此外,V2I通信允许排对附近交通信号灯状态的变化立即做出反应,例如当交通阶段变为绿色时,可以增加交通效率。我们介绍了车辆排成系统的设计,然后通过使用模拟的结果以及在封闭轨道上使用真实的测试车进行的实验来估算吞吐量的潜在增长来评估性能。最后,我们简要概述了在加利福尼亚州阿卡迪亚的公共道路上进行车辆排的演示。
In this paper we present a model-predictive control (MPC) based approach for vehicle platooning in an urban traffic setting. Our primary goal is to demonstrate that vehicle platooning has the potential to significantly increase throughput at intersections, which can create bottlenecks in the traffic flow. To do so, our approach relies on vehicle connectivity: vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication. In particular, we introduce a customized V2V message set which features a velocity forecast, i.e. a prediction on the future velocity trajectory, which enables platooning vehicles to accurately maintain short following distances, thereby increasing throughput. Furthermore, V2I communication allows platoons to react immediately to changes in the state of nearby traffic lights, e.g. when the traffic phase becomes green, enabling additional gains in traffic efficiency. We present our design of the vehicle platooning system, and then evaluate performance by estimating the potential gains in terms of throughput using our results from simulation, as well as experiments conducted with real test vehicles on a closed track. Lastly, we briefly overview our demonstration of vehicle platooning on public roadways in Arcadia, CA.