Boosting Reinforcement Learning with Unsupervised Feature Extraction

The advent of connected vehicle (CV) technology offers new possibilities for a revolution in future transportation systems. With the availability of real-time traffic data from CVs, it is possible to more effectively optimize traffic signals to reduce congestion, increase fuel efficiency, and enhance road safety. The success of CV-based signal control depends on an accurate and computationally efficient model that accounts for the stochastic and nonlinear nature of the traffic flow. Without the necessity of prior knowledge of the traffic system’s model architecture, reinforcement learning (RL) is a promising tool to acquire the control policy through observing the transition of the traffic states. In this paper, we propose a novel data-driven traffic signal control method that leverages the latest in deep learning and reinforcement learning techniques. By incorporating a compressed representation of the traffic states, the proposed method overcomes the limitations of the existing methods in defining the action space to include more practical and flexible signal phases. The simulation results demonstrate the convergence and robust performance of the proposed method against several existing benchmark methods in terms of average vehicle speeds, queue length, wait time, and traffic density.

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A Novel Deep Reinforcement Learning Approach to Traffic Signal Control with Connected Vehicles

Shi

Wang

LaClair

et al. 2023

Applied Sciences

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Boosting Reinforcement Learning with Unsupervised Feature Extraction

Cited by 1 publication

References 26 publications

A Novel Deep Reinforcement Learning Approach to Traffic Signal Control with Connected Vehicles

A Novel Deep Reinforcement Learning Approach to Traffic Signal Control with Connected Vehicles

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