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With the rapid advance of information technology, network systems have become increasingly complex and hence the underlying system dynamics are often unknown or difficult to characterize. Finding a good network control policy is of…

Performance · Computer Science 2022-04-08 Bai Liu , Qiaomin Xie , Eytan Modiano

This research introduces an innovative method for adaptive traffic signal control (ATSC) through the utilization of multi-objective deep reinforcement learning (DRL) techniques. The proposed approach aims to enhance control strategies at…

Machine Learning · Computer Science 2024-08-05 Shahin Mirbakhsh , Mahdi Azizi

Many studies confirmed that a proper traffic state representation is more important than complex algorithms for the classical traffic signal control (TSC) problem. In this paper, we (1) present a novel, flexible and efficient method, namely…

Artificial Intelligence · Computer Science 2022-08-10 Liang Zhang , Qiang Wu , Jun Shen , Linyuan Lü , Bo Du , Jianqing Wu

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

Traffic Signal Control (TSC) is a crucial component in urban traffic management, aiming to optimize road network efficiency and reduce congestion. Traditional TSC methods, primarily based on transportation engineering and reinforcement…

Artificial Intelligence · Computer Science 2024-12-18 Siqi Lai , Zhao Xu , Weijia Zhang , Hao Liu , Hui Xiong

The emergence of reinforcement learning (RL) methods in traffic signal control tasks has achieved better performance than conventional rule-based approaches. Most RL approaches require the observation of the environment for the agent to…

Machine Learning · Computer Science 2023-11-16 Hao Mei , Junxian Li , Bin Shi , Hua Wei

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

Traffic Signal Control (TSC) aims to reduce the average travel time of vehicles in a road network, which in turn enhances fuel utilization efficiency, air quality, and road safety, benefiting society as a whole. Due to the complexity of…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Junfan Lin , Yuying Zhu , Lingbo Liu , Yang Liu , Guanbin Li , Liang Lin

Effective traffic signal control (TSC) is crucial in mitigating urban congestion and reducing emissions. Recently, reinforcement learning (RL) has been the research trend for TSC. However, existing RL algorithms face several real-world…

Systems and Control · Electrical Eng. & Systems 2025-09-30 Mingyuan Li , Jiahao Wang , Bo Du , Jun Shen , Qiang Wu

Traffic signal control (TSC) is a core challenge in urban mobility, where real-time decisions must balance efficiency and safety. Existing methods - ranging from rule-based heuristics to reinforcement learning (RL) - often struggle to…

Systems and Control · Electrical Eng. & Systems 2025-12-12 Maonan Wang , Yirong Chen , Aoyu Pang , Yuxin Cai , Chung Shue Chen , Yuheng Kan , Man-On Pun

Urban congestion remains a critical challenge, with traffic signal control (TSC) emerging as a potent solution. TSC is often modeled as a Markov Decision Process problem and then solved using reinforcement learning (RL), which has proven…

Artificial Intelligence · Computer Science 2024-07-09 Aoyu Pang , Maonan Wang , Man-On Pun , Chung Shue Chen , Xi Xiong

Reinforcement Learning (RL) in Traffic Signal Control (TSC) faces significant hurdles in real-world deployment due to limited generalization to dynamic traffic flow variations. Existing approaches often overfit static patterns and use…

Artificial Intelligence · Computer Science 2026-03-13 Sheng-You Huang , Hsiao-Chuan Chang , Yen-Chi Chen , Ting-Han Wei , I-Hau Yeh , Sheng-Yao Kuan , Chien-Yao Wang , Hsuan-Han Lee , I-Chen Wu

Traffic Signal Control (TSC) plays a critical role in urban traffic management by optimizing traffic flow and mitigating congestion. While Large Language Models (LLMs) have recently emerged as promising tools for TSC due to their…

Machine Learning · Computer Science 2025-03-18 Zirui Yuan , Siqi Lai , Hao Liu

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

Traffic accidents result in millions of injuries and fatalities globally, with a significant number occurring at intersections each year. Traffic Signal Control (TSC) is an effective strategy for enhancing safety at these urban junctures.…

Machine Learning · Computer Science 2025-12-17 Mingyuan Li , Chunyu Liu , Zhuojun Li , Xiao Liu , Guangsheng Yu , Bo Du , Jun Shen , Qiang Wu

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

Efficient traffic signal control (TSC) has been one of the most useful ways for reducing urban road congestion. Key to the challenge of TSC includes 1) the essential of real-time signal decision, 2) the complexity in traffic dynamics, and…

Artificial Intelligence · Computer Science 2023-06-16 Wanyuan Wang , Tianchi Qiao , Jinming Ma , Jiahui Jin , Zhibin Li , Weiwei Wu , Yichuan Jian

With the increasing availability of traffic data and advance of deep reinforcement learning techniques, there is an emerging trend of employing reinforcement learning (RL) for traffic signal control. A key question for applying RL to…

Machine Learning · Computer Science 2019-05-14 Guanjie Zheng , Xinshi Zang , Nan Xu , Hua Wei , Zhengyao Yu , Vikash Gayah , Kai Xu , Zhenhui Li

Reinforcement learning-based traffic signal control (RL-TSC) has emerged as a promising approach for improving urban mobility. However, its robustness under real-world disruptions such as traffic incidents remains largely underexplored. In…

Machine Learning · Computer Science 2025-06-18 Dang Viet Anh Nguyen , Carlos Lima Azevedo , Tomer Toledo , Filipe Rodrigues

Adaptive traffic signal control (ATSC) is crucial in alleviating congestion, maximizing throughput and promoting sustainable mobility in ever-expanding cities. Multi-Agent Reinforcement Learning (MARL) has recently shown significant…

Machine Learning · Computer Science 2026-03-26 Yifeng Zhang , Harsh Goel , Peizhuo Li , Mehul Damani , Sandeep Chinchali , Guillaume Sartoretti