Multi-Lane Unsignalized Intersection Cooperation With Flexible Lane Direction Based on Multi-Vehicle Formation Control

Unsignalized intersection cooperation of connected and automated vehicles (CAVs) is able to eliminate green time loss of signalized intersections and improve traffic efficiency. Most of the existing research on unsignalized intersection cooperation considers fixed lane direction, where only specific...

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Bibliographic Details
Published in:IEEE transactions on vehicular technology 2022-06, Vol.71 (6), p.5787-5798
Main Authors: Cai, Mengchi, Xu, Qing, Chen, Chaoyi, Wang, Jiawei, Li, Keqiang, Wang, Jianqiang, Wu, Xiangbin
Format: Article
Language:English
Subjects:
Collision avoidance
Connected and automated vehicles
Cooperation
flexible lane direction
formation control
multi-lane unsignalized intersections
Optimization methods
Planning
Reconfiguration
Spatiotemporal phenomena
Timing
Traffic intersections
Traffic volume
Trajectory
Turning
Vehicle dynamics
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Summary:Unsignalized intersection cooperation of connected and automated vehicles (CAVs) is able to eliminate green time loss of signalized intersections and improve traffic efficiency. Most of the existing research on unsignalized intersection cooperation considers fixed lane direction, where only specific turning behavior of vehicles is allowed on each lane. Given that traffic volume and the proportion of vehicles with different turning expectation may change with time, fixed lane direction may lead to inefficiency at intersections. This paper proposes a multi-lane unsignalized intersection cooperation method that considers flexible lane direction. The two-dimensional distribution of vehicles is calculated and vehicles that are not in conflict are scheduled to pass the intersection simultaneously. The formation reconfiguration method is utilized to achieve collision-free longitudinal and lateral position adjustment of vehicles. Simulations are conducted at different input traffic volumes and turning proportion of incoming vehicles, and the results indicate that our method outperformances the fixed-lane-direction unsignalized cooperation method and the signalized method.
ISSN:0018-9545
1939-9359
DOI:10.1109/TVT.2022.3161274