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Traffic congestion in metropolitan areas presents a formidable challenge with far-reaching economic, environmental, and societal ramifications. Therefore, effective congestion management is imperative, with traffic signal control (TSC)…

Systems and Control · Electrical Eng. & Systems 2024-06-13 Maonan Wang , Aoyu Pang , Yuheng Kan , Man-On Pun , Chung Shue Chen , Bo Huang

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

Traffic signal control is safety-critical for our daily life. Roughly one-quarter of road accidents in the U.S. happen at intersections due to problematic signal timing, urging the development of safety-oriented intersection control.…

Machine Learning · Computer Science 2023-03-01 Wenlu Du , Junyi Ye , Jingyi Gu , Jing Li , Hua Wei , Guiling Wang

This paper develops a decentralized reinforcement learning (RL) scheme for multi-intersection adaptive traffic signal control (TSC), called "CVLight", that leverages data collected from connected vehicles (CVs). The state and reward design…

Machine Learning · Computer Science 2022-07-04 Mobin Zhao , Wangzhi Li , Yongjie Fu , Kangrui Ruan , Xuan Di

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

Traffic congestion in dense urban centers presents an economical and environmental burden. In recent years, the availability of vehicle-to-anything communication allows for the transmission of detailed vehicle states to the infrastructure…

Traffic congestion remains a major challenge for urban transportation, leading to significant economic and environmental impacts. Traffic Signal Control (TSC) is one of the key measures to mitigate congestion, and recent studies have…

Multiagent Systems · Computer Science 2026-01-27 Hsiao-Chuan Chang , Sheng-You Huang , Yen-Chi Chen , I-Chen Wu

Latest technological improvements increased the quality of transportation. New data-driven approaches bring out a new research direction for all control-based systems, e.g., in transportation, robotics, IoT and power systems. Combining…

Machine Learning · Computer Science 2020-05-05 Ammar Haydari , Yasin Yilmaz

Traffic signal control has a great impact on alleviating traffic congestion in modern cities. Deep reinforcement learning (RL) has been widely used for this task in recent years, demonstrating promising performance but also facing many…

Artificial Intelligence · Computer Science 2024-04-02 Liwen Zhu , Peixi Peng , Zongqing Lu , Yonghong Tian

Currently, traffic signal control (TSC) methods based on reinforcement learning (RL) have proven superior to traditional methods. However, most RL methods face difficulties when applied in the real world due to three factors: input, output,…

Multiagent Systems · Computer Science 2024-07-16 Haoyuan Jiang , Xuantang Xiong , Ziyue Li , Hangyu Mao , Guanghu Sui , Jingqing Ruan , Yuheng Cheng , Hua Wei , Wolfgang Ketter , Rui Zhao

The optimization of traffic signal control (TSC) is critical for an efficient transportation system. In recent years, reinforcement learning (RL) techniques have emerged as a popular approach for TSC and show promising results for highly…

Artificial Intelligence · Computer Science 2023-11-28 Jianxiong Li , Shichao Lin , Tianyu Shi , Chujie Tian , Yu Mei , Jian Song , Xianyuan Zhan , Ruimin Li

Traffic Signal Control (TSC) involves a challenging trade-off: classic heuristics are efficient but oversimplified, while Deep Reinforcement Learning (DRL) achieves high performance yet suffers from poor generalization and opaque policies.…

Artificial Intelligence · Computer Science 2025-12-01 Ruibing Wang , Shuhan Guo , Zeen Li , Zhen Wang , Quanming Yao

Traffic congestion is a persistent problem in urban areas, which calls for the development of effective traffic signal control (TSC) systems. While existing Reinforcement Learning (RL)-based methods have shown promising performance in…

Systems and Control · Electrical Eng. & Systems 2024-06-13 Maonan Wang , Xi Xiong , Yuheng Kan , Chengcheng Xu , Man-On Pun

Transparent decision-making is essential for traffic signal control (TSC) systems to earn public trust. However, traditional reinforcement learning-based TSC methods function as black boxes with limited interpretability. Although large…

Artificial Intelligence · Computer Science 2026-05-12 Darryl Jacob , Xinyu Liu , Muchao Ye , Xiaoyong Yuan , Pan He

Traffic signal control is of critical importance for the effective use of transportation infrastructures. The rapid increase of vehicle traffic and changes in traffic patterns make traffic signal control more and more challenging.…

Machine Learning · Computer Science 2021-12-08 Xingshuai Huang , Di Wu , Michael Jenkin , Benoit Boulet

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…

Safe and efficient autonomous driving in dense traffic is fundamentally a decentralized multi-agent coordination problem, where interactions at conflict points such as merging and weaving must be resolved reliably under partial…

Robotics · Computer Science 2026-03-02 Xiaotong Zhang , Gang Xiong , Yuanjing Wang , Siyu Teng , Alois Knoll , Long Chen

Understanding how Advanced Driver-Assistance Systems (ADAS) interact with Traffic Control Devices (TCDs) is critical for assessing their influence on traffic operations, yet this interaction has received little focused empirical study. This…

Robotics · Computer Science 2025-12-16 Zheng Li , Peng Zhang , Shixiao Liang , Hang Zhou , Chengyuan Ma , Handong Yao , Qianwen Li , Xiaopeng Li

Existing ineffective and inflexible traffic light control at urban intersections can often lead to congestion in traffic flows and cause numerous problems, such as long delay and waste of energy. How to find the optimal signal timing…

Machine Learning · Computer Science 2020-09-30 Chenguang Zhao , Xiaorong Hu , Gang Wang

Since conventional approaches could not adapt to dynamic traffic conditions, reinforcement learning (RL) has attracted more attention to help solve the traffic signal control (TSC) problem. However, existing RL-based methods are rarely…

Machine Learning · Computer Science 2021-12-07 Qiang Wu , Liang Zhang , Jun Shen , Linyuan Lü , Bo Du , Jianqing Wu