Abstract
To alleviate traffic congestion, it is a trend to apply reinforcement learning (RL) to traffic signal control in multi-intersection road networks. However, existing researches generally combine a basic RL framework Ape-X DQN with the graph convolutional network (GCN), to aggregate the neighborhood information, lacking unique collaboration exploration at each intersection with shared parameters. This paper proposes a multi-mode Light model that learns the general collaboration patterns in a road network with the graph attention network and trains simple Multilayer Perceptron for each intersection to capture each intersection’s unique collaboration pattern. The experiment results demonstrate that our model improves average by \(27.19\%\) compared with the state-of-the-art transportation method MaxPressure and average by \(4.57\%\) compared with the state-of-the-art reinforcement learning method Colight.
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Acknowledgement
This work was supported in part by the National Key R &D Program of China 2020YFB2103900, in part by the National Natural Science Foundation of China under Grant 61936014, in part by the Shanghai Municipal Science and Technology Major Project under Grant 2021SHZDZX0100, in part by the Natural Science Foundation of Shanghai under Grant 22ZR1462900 and in part by the Fundamental Research Funds for the Central Universities.
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Chen, Z., Zhao, S., Deng, H. (2022). Multi-mode Light: Learning Special Collaboration Patterns for Traffic Signal Control. In: Pimenidis, E., Angelov, P., Jayne, C., Papaleonidas, A., Aydin, M. (eds) Artificial Neural Networks and Machine Learning – ICANN 2022. ICANN 2022. Lecture Notes in Computer Science, vol 13530. Springer, Cham. https://doi.org/10.1007/978-3-031-15931-2_6
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