ABSTRACT

With the development of artificial intelligence and wireless communication technology, connected and autonomous vehicles (CAVs) have been treated as a promising strategy to increase road capacity and mitigate traffic congestion. Besides the technology of CAVs, innovative intersection design was also originally introduced as a countermeasure for dealing with traffic congestion at intersections. Though many studies have been conducted to explore the benefits of CAVs under various transportation scenarios, few have been implemented to explore the impact of CAVs on traffic flow at innovative intersections. Hence, to achieve a better understanding of the impacts of CAVs on existing transportation infrastructure, this study conducts a simulation-based study to investigate the operational performance of CAVs with available Signal Phase and Timing (SPaT) information in the environment of typical innovative intersection design, i.e. superstreets. The impact of CAVs with different market penetration rates on the operational performance of a superstreet is identified. The operational performance of the superstreet increases as the market penetration rate increases overall. Average speed and average traffic delay for vehicles in the superstreet system can be improved with the increase of market penetration rates.

摘要

随着人工智能和无线通信技术的发展，联网和自动驾驶汽车 (CAV) 已被视为增加道路通行能力和缓解交通拥堵的一种很有前景的策略。除了 CAV 技术，创新的交叉口设计最初也是作为应对交叉口交通拥堵的对策而引入的。尽管已经进行了许多研究来探索 CAV 在各种交通场景下的好处，但很少有人实施来探索 CAV 对创新交叉口交通流量的影响。因此，为了更好地了解 CAV 对现有交通基础设施的影响，本研究进行了一项基于模拟的研究，以研究具有可用信号相位和时序 (SPaT) 信息的 CAV 在典型创新交叉口设计环境（即超级街道）中的运行性能。确定了具有不同市场渗透率的 CAV 对超级街道运营绩效的影响。随着整体市场渗透率的提高，超级街的经营业绩也随之提高。随着市场渗透率的提高，可以提高超级街道系统中车辆的平均速度和平均交通延误。随着整体市场渗透率的提高，超级街的经营业绩也随之提高。随着市场渗透率的提高，可以提高超级街道系统中车辆的平均速度和平均交通延误。随着整体市场渗透率的提高，超级街的经营业绩也随之提高。随着市场渗透率的提高，可以提高超级街道系统中车辆的平均速度和平均交通延误。