Learning When to Drive in Intersections by Combining Reinforcement Learning and Model Predictive Control

1 Aug 2019  ·  Tommy Tram, Ivo Batkovic, Mohammad Ali, Jonas Sjöberg ·

In this paper, we propose a decision making algorithm intended for automated vehicles that negotiate with other possibly non-automated vehicles in intersections. The decision algorithm is separated into two parts: a high-level decision module based on reinforcement learning, and a low-level planning module based on model predictive control. Traffic is simulated with numerous predefined driver behaviors and intentions, and the performance of the proposed decision algorithm was evaluated against another controller. The results show that the proposed decision algorithm yields shorter training episodes and an increased performance in success rate compared to the other controller.

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