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Traffic signal control (TSC) is a high-stakes domain that is growing in importance as traffic volume grows globally. An increasing number of works are applying reinforcement learning (RL) to TSC; RL can draw on an abundance of traffic data…

Artificial Intelligence · Computer Science 2022-10-05 Rex Chen , Fei Fang , Norman Sadeh

Several studies have employed reinforcement learning (RL) to address the challenges of regional adaptive traffic signal control (ATSC) and achieved promising results. In this field, existing research predominantly adopts multi-agent…

Artificial Intelligence · Computer Science 2026-01-14 Qiang Li , Ningjing Zeng , Lina Yu

Sub-optimal control policies in intersection traffic signal controllers (TSC) contribute to congestion and lead to negative effects on human health and the environment. Reinforcement learning (RL) for traffic signal control is a promising…

The integration of Automated Vehicles (AVs) into traffic flow holds the potential to significantly improve traffic congestion by enabling AVs to function as actuators within the flow. This paper introduces an adaptive speed controller…

Systems and Control · Electrical Eng. & Systems 2024-08-20 Han Wang , Hossein Nick Zinat Matin , Maria Laura Delle Monache

Recent advances in robotics, automation, and artificial intelligence have enabled urban traffic systems to operate with increasing autonomy towards future smart cities, powered in part by the development of adaptive traffic signal control…

Robotics · Computer Science 2026-03-27 Xibei Chen , Yifeng Zhang , Yuxiang Xiao , Mingfeng Fan , Maonan Wang , Guillaume Sartoretti

The rapid development of autonomous vehicles (AVs) holds vast potential for transportation systems through improved safety, efficiency, and access to mobility. However, the progression of these impacts, as AVs are adopted, is not well…

Artificial Intelligence · Computer Science 2022-01-03 Cathy Wu , Aboudy Kreidieh , Kanaad Parvate , Eugene Vinitsky , Alexandre M Bayen

Adaptive traffic signal control (ATSC) is essential for mitigating urban congestion in modern smart cities, where traffic infrastructure is evolving into interconnected Web-of-Things (WoT) environments with thousands of sensing-and-control…

Machine Learning · Computer Science 2026-03-23 Yaqiao Zhu , Hongkai Wen , Geyong Min , Man Luo

Adaptive Traffic Signal Control (ATSC) has become a popular research topic in intelligent transportation systems. Regional Traffic Signal Control (RTSC) using the Multi-agent Deep Reinforcement Learning (MADRL) technique has become a…

Multiagent Systems · Computer Science 2025-02-20 Hankang Gu , Shangbo Wang , Dongyao Jia , Yuli Zhang , Yanrong Luo , Guoqiang Mao , Jianping Wang , Eng Gee Lim

Adaptive traffic signal control (ATSC) is crucial in reducing congestion, maximizing throughput, and improving mobility in rapidly growing urban areas. Recent advancements in parameter-sharing multi-agent reinforcement learning (MARL) have…

Machine Learning · Computer Science 2026-03-26 Yifeng Zhang , Yilin Liu , Ping Gong , Peizhuo Li , Mingfeng Fan , Guillaume Sartoretti

In reinforcement learning-based (RL-based) traffic signal control (TSC), decisions on the signal timing are made based on the available information on vehicles at a road intersection. This forms the state representation for the RL…

Systems and Control · Electrical Eng. & Systems 2024-11-13 Lawrence Francis , Blessed Guda , Ahmed Biyabani

This paper presents the results of a new deep learning model for traffic signal control. In this model, a novel state space approach is proposed to capture the main attributes of the control environment and the underlying temporal traffic…

Systems and Control · Electrical Eng. & Systems 2024-12-20 Matthew Muresan , Liping Fu , Guangyuan Pan

Adaptive traffic signal control (ATSC) in urban traffic networks poses a challenging task due to the complicated dynamics arising in traffic systems. In recent years, several approaches based on multi-agent deep reinforcement learning…

Multiagent Systems · Computer Science 2021-07-07 Paolo Fazzini , Marco Torre , Valeria Rizza , Francesco Petracchini

This paper proposes a reinforcement learning approach for traffic control with the adaptive horizon. To build the controller for the traffic network, a Q-learning-based strategy that controls the green light passing time at the network…

Systems and Control · Computer Science 2019-04-01 Wentao Chen , Tehuan Chen , Guang Lin

Recently, Intelligent Transportation Systems are leveraging the power of increased sensory coverage and computing power to deliver data-intensive solutions achieving higher levels of performance than traditional systems. Within Traffic…

Machine Learning · Computer Science 2021-05-03 Alvaro Cabrejas-Egea , Raymond Zhang , Neil Walton

Reinforcement learning (RL) for traffic signal control (TSC) has shown better performance in simulation for controlling the traffic flow of intersections than conventional approaches. However, due to several challenges, no RL-based TSC has…

Machine Learning · Computer Science 2022-06-22 Arthur Müller , Matthia Sabatelli

In the backdrop of an increasingly pressing need for effective urban and highway transportation systems, this work explores the synergy between model-based and learning-based strategies to enhance traffic flow management by use of an…

Systems and Control · Electrical Eng. & Systems 2025-02-04 Filippo Airaldi , Bart De Schutter , Azita Dabiri

Multi-agent reinforcement learning (MARL) has shown significant potential in traffic signal control (TSC). However, current MARL-based methods often suffer from insufficient generalization due to the fixed traffic patterns and road network…

Multiagent Systems · Computer Science 2025-03-13 Yihong Li , Chengwei Zhang , Furui Zhan , Wanting Liu , Kailing Zhou , Longji Zheng

Reinforcement learning (RL) constitutes a promising solution for alleviating the problem of traffic congestion. In particular, deep RL algorithms have been shown to produce adaptive traffic signal controllers that outperform conventional…

Machine Learning · Statistics 2019-07-23 Filipe Rodrigues , Carlos Lima Azevedo

Efficient traffic control (TSC) is essential for urban mobility, but traditional systems struggle to handle the complexity of real-world traffic. Multi-agent Reinforcement Learning (MARL) offers adaptive solutions, but online MARL requires…

Artificial Intelligence · Computer Science 2025-03-19 Rohit Bokade , Xiaoning Jin

Adaptive Traffic Signal Control (ATSC) aims to optimize traffic flow and minimize delays by adjusting traffic lights in real time. Recent advances in Multi-agent Reinforcement Learning (MARL) have shown promise for ATSC, yet existing…

Robotics · Computer Science 2026-03-26 Yifeng Zhang , Peizhuo Li , Tingguang Zhou , Mingfeng Fan , Guillaume Sartoretti