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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 signal control is an important and challenging real-world problem, which aims to minimize the travel time of vehicles by coordinating their movements at the road intersections. Current traffic signal control systems in use still…

Machine Learning · Computer Science 2020-01-17 Hua Wei , Guanjie Zheng , Vikash Gayah , Zhenhui Li

Reinforcement learning has been revolutionizing the traditional traffic signal control task, showing promising power to relieve congestion and improve efficiency. However, the existing methods lack effective learning mechanisms capable of…

Multiagent Systems · Computer Science 2023-12-25 Jiaming Lu , Jingqing Ruan , Haoyuan Jiang , Ziyue Li , Hangyu Mao , Rui Zhao

Traffic conflict detection is essential for proactive road safety by identifying potential collisions before they occur. Existing methods rely on surrogate safety measures tailored to specific interactions (e.g., car-following,…

Robotics · Computer Science 2024-12-24 Yiru Jiao , Simeon C. Calvert , Sander van Cranenburgh , Hans van Lint

Traffic signal control is a significant part of the construction of intelligent transportation. An efficient traffic signal control strategy can reduce traffic congestion, improve urban road traffic efficiency and facilitate people's lives.…

Machine Learning · Computer Science 2022-03-14 Ruijie Qi , Jianbin Huang , He Li , Qinglin Tan , Longji Huang , Jiangtao Cui

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

Intersections are essential road infrastructures for traffic in modern metropolises. However, they can also be the bottleneck of traffic flows as a result of traffic incidents or the absence of traffic coordination mechanisms such as…

Machine Learning · Computer Science 2024-11-05 Dawei Wang , Weizi Li , Lei Zhu , Jia Pan

In this paper, we investigate traffic signal control in a network of interconnected intersections, aiming to balance lane-level vehicle densities through optimal green-time allocation. We develop a two-lane traffic flow model that…

Systems and Control · Electrical Eng. & Systems 2025-12-09 Xinfeng Ru , Ting Bai , Weiguo Xia , Andreas A. Malikopoulos

Traffic signal control systems (TSCSs) are integral to intelligent traffic management, fostering efficient vehicle flow. Traditional approaches often simplify road networks into standard graphs, which results in a failure to consider the…

Multiagent Systems · Computer Science 2025-04-04 Kang Wang , Zhishu Shen , Zhen Lei , Tiehua Zhang

Urban traffic is subject to disruptions that cause extended waiting time and safety issues at signalized intersections. While numerous studies have addressed the issue of intelligent traffic systems in the context of various disturbances,…

Artificial Intelligence · Computer Science 2024-09-16 Qinchen Yang , Zejun Xie , Hua Wei , Desheng Zhang , Yu Yang

We consider a mixed autonomy scenario where the traffic intersection controller decides whether the traffic light will be green or red at each lane for multiple traffic-light blocks. The objective of the traffic intersection controller is…

Systems and Control · Electrical Eng. & Systems 2021-06-25 Erica Salvato , Arnob Ghosh , Gianfranco Fenu , Thomas Parisini

Road intersections are widely recognized as a lead cause for accidents and traffic delays. In a future scenario with a significant adoption of Cooperative Autonomous Vehicles, solutions based on fully automatic, signage-less Intersection…

Systems and Control · Electrical Eng. & Systems 2021-04-09 Twan Keijzer , Fabian Jarmolowitz , Riccardo M. G. Ferrari

Multi-agent reinforcement learning is a promising research area that extends established reinforcement learning approaches to problems formulated as multi-agent systems. Recently, a multitude of communication methods have been introduced to…

Multiagent Systems · Computer Science 2026-01-21 Christoph Wittner

This paper introduces MoveLight, a novel traffic signal control system that enhances urban traffic management through movement-centric deep reinforcement learning. By leveraging detailed real-time data and advanced machine learning…

Machine Learning · Computer Science 2024-07-25 Junqi Shao , Chenhao Zheng , Yuxuan Chen , Yucheng Huang , Rui Zhang

Traffic signal control is a critical challenge in urban transportation, requiring coordination among multiple intersections to optimize network-wide traffic flow. While reinforcement learning has shown promise for adaptive signal control,…

Machine Learning · Computer Science 2026-02-04 Haoran Su , Yandong Sun , Hanxiao Deng

Intelligent traffic signal controllers, applying DQN algorithms to traffic light policy optimization, efficiently reduce traffic congestion by adjusting traffic signals to real-time traffic. Most propositions in the literature however…

Machine Learning · Computer Science 2021-09-30 Romain Ducrocq , Nadir Farhi

Unsignalized intersections pose significant safety and efficiency challenges due to complex traffic flows. This paper proposes a novel roadside unit (RSU)-centric cooperative driving system leveraging global perception and…

Robotics · Computer Science 2025-05-08 Taoyuan Yu , Kui Wang , Zongdian Li , Tao Yu , Kei Sakaguchi

Traffic signal control is a challenging real-world problem aiming to minimize overall travel time by coordinating vehicle movements at road intersections. Existing traffic signal control systems in use still rely heavily on oversimplified…

Artificial Intelligence · Computer Science 2022-08-09 Chi-Chun Chao , Jun-Wei Hsieh , Bor-Shiun Wang

Ineffective and inflexible traffic signal control at urban intersections can often lead to bottlenecks in traffic flows and cause congestion, delay, and environmental problems. How to manage traffic smartly by intelligent signal control is…

Systems and Control · Computer Science 2019-05-21 Mengyu Guo , Pin Wang , Ching-Yao Chan , Sid Askary

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