Discretionary Lane Change Model for Intelligent Connected Vehicles on Expressway

Intelligent connected vehicles (ICVs) are expected to improve expressway traffic mobility, safety, and green energy through sensing local environment, sharing information, and applying appropriate control measures. This paper proposes a model to express the decision of lane change for ICVs based on the advantages of information sensing, decision making, and driving operation. The model of the process of expected lane change decision is studied, and it is an improvement of the MOBIL (minimize overall braking induced by lane change), considering both transverse acceleration and longitudinal acceleration. The model of cooperative lane change decision of ICVs is based on the game theory. A numerical simulation case study is designed and exploited by MATLAB. The simulation results show that the proposed model can improve operation efficiency of traffic flow and reduce traffic jams caused by disorderly lane changing. Finally, the conclusion and future studies are presented.