4.7 Article

Managing connected and automated vehicles at isolated intersections: From reservation- to optimization-based methods

期刊

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.trb.2019.03.002

关键词

Connected and automated vehicle; Isolated intersection; Reservation; Optimization

资金

  1. US Department of Energy (EERE Award) [DE-EE0007212]
  2. Shanghai Yangfan Program [19YF1451600]
  3. National Natural Science Foundation of China [61773293]

向作者/读者索取更多资源

Reservation-based methods with simple policies such as first-come-first-service (FCFS) have been proposed in the literature to manage connected and automated vehicles (CAVs) at isolated intersections. However, a comprehensive analysis of intersection capacity and vehicle delay under FCFS-based control is missing, especially under high traffic demand. To address this problem, this study adopts queueing theory and analytically shows that such method is incapable of handling high demand with multiple conflicting traffic streams. Furthermore, an optimization model is proposed to optimally serve CAVs arriving at an intersection for delay minimization. This study then compares the performance of the proposed optimization-based control with reservation-based control as well as conventional vehicle-actuated control at different demand levels. Simulation results show that the proposed optimization-based control performs best and it has noticeable advantages over the other two control methods. The advantages of reservation-based control are insignificant compared with vehicle-actuated control under high demand. (C) 2019 Elsevier Ltd. All rights reserved.

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