论文标题
人类驱动车辆和自动化车辆混合交通流的振荡增长:实验研究和模拟
Oscillation growth in mixed traffic flow of human driven vehicles and automated vehicles: Experimental study and simulation
论文作者
论文摘要
本文报告了一项关于自动化车辆(AV)和人类驱动车辆(HVS)混合交通流动流动流动流动流动流动流动率(HVS)的实验研究。领先的车辆在实验中以恒定的速度移动。以下车辆由六个可开发的AV和不同数量的HV组成。因此,随着排规模的增加,AV的市场渗透率(MPR)降低。 AV在排中均匀分布。 AVS采用恒定的时间间隙跟随策略,并将间隙设置为1.5 s。该实验表明,在7车型平原上,振荡仅略有生长。在10车型平原中,AVS仍然可以显着抑制振荡的生长。随着13和20车道平原中AV的MPR进一步减少,AVS对振荡生长没有显着影响。另一方面,随着AV的MPR的降低,车辆的平均密度和排的流量增加,这表明在给定的AVS设置下,交通稳定性和吞吐量之间的权衡。还进行了仿真研究,与实验表现出良好的一致性。最后,对AV上层控制算法中参数的灵敏度分析已经进行,这有望指导未来的实验设计。
This paper reports an experimental study on oscillation growth in mixed traffic flow of automated vehicles (AVs) and human driven vehicles (HVs). The leading vehicle moves with constant speed in the experiment. The following vehicles consist of six developable AVs and different number of HVs. Thus, the market penetration rate (MPR) of AVs decreases with the increase of platoon size. The AVs are homogeneously distributed in the platoon. The constant time gap car-following policy is adopted for the AVs and the gap is set to 1.5 s. The experiment shows that in the 7-vehicle-platoon, the oscillations grow only slightly. In the 10-vehicle-platoon, the AVs could still significantly suppress the growth of oscillations. With the further decrease of MPR of AVs in the 13- and 20-vehicle-platoon, the AVs become having no significant impact on oscillation growth. On the other hand, with the decrease of MPR of AVs, average density of the vehicles and flow rate of the platoon increase, which demonstrates a trade-off between traffic stability and throughput under the given setup of AVs. The simulation study is also carried out, which exhibits good agreement with the experiment. Finally, sensitivity analysis of the parameters in the AV upper-level control algorithm has been performed, which is expected to guide future experiment design.