Dissipation of stop-and-go waves via control of autonomous vehicles: Field experiments
Dissipation of stop-and-go waves via control of autonomous vehicles: Field experiments
复制标题
DOI：
10.1016/j.trc.2018.02.005
复制
发表时间：
2018-04-01
影响因子：
8.3
通讯作者：
Work, Daniel B.
中科院分区：
文献类型：
--
作者：
Stern, Raphael E.;Cui, Shumo;Work, Daniel B.
交通波是当车辆密度超过临界阈值时出现的现象。考虑到越来越多的自动化车辆在交通流中的存在，一些研究活动集中在自动化车辆对批量交通流的影响。在本文中，我们通过实验证明，自动驾驶汽车的智能控制能够抑制即使在没有几何或车道变换触发器的情况下也可能出现的走走停停波。准确地说，我们在一个有20多辆车的圆形轨道上进行的实验表明，交通波的出现是一致的，并且可以通过控制流中单个车辆的速度来抑制交通波。我们在实验中比较了速度，制动事件和燃油经济性的指标。这些实验结果表明，交通管理的范式转变：流量控制将有可能通过几个移动的致动器（不到5%）之前，大多数车辆具有自主能力。
Traffic waves are phenomena that emerge when the vehicular density exceeds a critical threshold. Considering the presence of increasingly automated vehicles in the traffic stream, a number of research activities have focused on the influence of automated vehicles on the bulk traffic flow. In the present article, we demonstrate experimentally that intelligent control of an autonomous vehicle is able to dampen stop-and-go waves that can arise even in the absence of geometric or lane changing triggers. Precisely, our experiments on a circular track with more than 20 vehicles show that traffic waves emerge consistently, and that they can be dampened by controlling the velocity of a single vehicle in the flow. We compare metrics for velocity, braking events, and fuel economy across experiments. These experimental findings suggest a paradigm shift in traffic management: flow control will be possible via a few mobile actuators (less than 5%) long before a majority of vehicles have autonomous capabilities.