A Conflict Duration Graph-Based Coordination Method for Connected and Automated Vehicles at Signal-Free Intersections

Applied Sciences

Yanjun Shi¹  Qiaomei Han¹  Lingling Lv¹  Zhiyun Deng²  Weiming Shen² 

[1] School of Mechanical Engineering, Dalian University of Technology, Dalian 116024, China;State Key Lab of Digital Manufacturing Equipment and Technology, Huazhong University of Science & Technology, Wuhan 430074, China;

关键词: connected and automated vehicles;    signal-free intersection;    traffic coordination method;    multi-vehicle collision resolution;   

DOI  :  10.3390/app10186223

来源: DOAJ

【 摘 要 】

Previous studies on Connected and Automated Vehicles (CAVs) demonstrated the potential to coordinate the behaviors of multiple connected vehicles for traffic improvements. In this paper, we first propose a Conflict Duration Graph-based (CDG-based) coordination framework to resolve collisions and improve the traffic capacity of signal-free intersections. Secondly, a Speed Control-based Intersection Coordination Model (SICM) is developed to identify complex constraints in multi-vehicle collision scenarios. Thirdly, a geometric Translation-based Intersection Coordination Algorithm (TICA) is proposed to calculate the ideal location of time blocks in CDGs and then obtain the near-optimal design speed in the form of combinatorial optimization. Twelve groups of test scenarios with different traffic volumes were designed and tested on a MATLAB-based simulation platform. Simulation results showed that the proposed method can resolve all the collisions and instruct the vehicles to pass signal-free intersections collaboratively without stopping in low to medium level of congestion.

【 授权许可】

Unknown