Leveraging existing high-occupancy vehicle lanes for mixed-autonomy traffic management with emerging connected automated vehicle applications
Leveraging existing high-occupancy vehicle lanes for mixed-autonomy traffic management with emerging connected automated vehicle applications
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DOI：
10.1080/23249935.2020.1720863
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发表时间：
2020-01-01
影响因子：
3.3
通讯作者：
Ma, Jiaqi
中科院分区：
文献类型：
--
作者：
Guo, Yi;Ma, Jiaqi
运输机构已经开始在其运输计划和项目中分阶段部署互联和自动驾驶汽车（CAV）技术。虽然理论分析表明，CAV的显着好处，提高系统的性能，部署这些技术在现有的或改造的公路设施关注的技术问题。本研究介绍了混合自动交通管理中使用管理车道，特别是高占用车辆（HOV）车道的概念和操作策略。该研究增强了现有的，并开发了新的算法，为三个选定的高速公路CAV应用作为一个CAV技术集成，包括速度协调，合作自适应巡航控制（CACC），合作合并。而不是一个合成段的评价，这项研究报告了一个大规模的模拟为基础的现实世界的案例研究，调查CAV早期部署的机会，在66号州际公路外的环城公路。仿真结果表明，对于所有的情况下，个人和捆绑CAV应用程序可以显着提高延迟和吞吐量方面的业务性能。CACC队列是改善交通性能最有效的个体策略。即使CAV市场渗透率较低，捆绑的CAV应用也可以使系统受益，并完全处理CAV市场渗透率高的现有需求的130%以上。此外，左侧专用坡道和共享管理车道运营策略也是有益的，即使在早期部署阶段也是如此。
Transportation agencies have started including phased deployment of connected and automated vehicle (CAV) technologies in their transportation plans and programs. While theoretical analyses have indicated significant benefits of CAVs for improving system performance, deploying these technologies at existing or adapted highway facilities concerns more than technological issues. This study introduces the concepts and operational strategies of using managed lanes, High-Occupancy Vehicle (HOV) lanes in particular, for mixed-autonomy traffic management. The study enhances existing and develops new algorithms for three selected freeway CAV applications as a CAV technology integration, including speed harmonization, cooperative adaptive cruise control (CACC), and cooperative merge. Instead of evaluation on a synthetic segment, this study reports a large-scale simulation-based real-world case study to investigate CAV early deployment opportunities on Interstate 66 outside the Beltway. The simulation results show that, for all scenarios, individual and bundled CAV applications can significantly improve traffic performance in terms of delay and throughput. CACC platooning is the most effective individual strategy to improve traffic performance. The bundled CAV applications can benefit the system, even with low CAV market penetration, and fully handle more than 130 percent of the existing demand with high CAV market penetration rates. Additionally, left-side dedicated ramps and shared managed lane operational strategies are also beneficial, even during early deployment stages.