Highlights Game theoretic models for lane changing that incorporate conflict risk. A QRE model is used to estimate the utilities. The models developed were found to predict behaviour with reasonable accuracy. Longer acceleration lanes reduce likelihood of lane-changing conflicts. Reduction of speed limits on on-ramps reduce likelihood of lane-changing conflicts.
Abstract The study employs a Quantal Response Equilibrium framework to model lane changing manoeuvres. Prior game theoretic studies in lane changing have pre-eminently assumed Nash equilibrium solutions with deterministic payoffs for actions. The study method involves developing expected utility models for drivers’ merge and give-way decisions. These utility models incorporate explanatory variables representing driver trajectories during a lane changing manoeuvre. The model parameters are estimated using maximum likelihood on lane changing data at a freeway on-ramp using the NGSIM dataset. Based on the estimated parameters it was concluded that longer acceleration lanes and reduction of speed limits on on-ramps could help significantly reduce likelihood of conflict. To demonstrate the robustness of the model, predictions of lane changing on an out-of-sample data were found to be reasonably accurate.
Game theoretic model for lane changing: Incorporating conflict risks
Accident Analysis and Prevention ; 125 ; 158-164
2019-02-06
7 pages
Article (Journal)
Electronic Resource
English
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|European Patent Office | 2023
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