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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

This work examines the implications of uncoupled intersections with local real-world topology and sensor setup on traffic light control approaches. Control approaches are evaluated with respect to: Traffic flow, fuel consumption and noise…

Artificial Intelligence · Computer Science 2018-11-29 Mark Schutera , Niklas Goby , Stefan Smolarek , Markus Reischl

Efficient traffic signal control (TSC) is crucial for reducing congestion, travel delays, pollution, and for ensuring road safety. Traditional approaches, such as fixed signal control and actuated control, often struggle to handle dynamic…

Systems and Control · Electrical Eng. & Systems 2025-09-29 Anirud Nandakumar , Chayan Banerjee , Lelitha Devi Vanajakshi

Traffic signal control has long been considered as a critical topic in intelligent transportation systems. Most existing learning methods mainly focus on isolated intersections and suffer from inefficient training. This paper aims at the…

Machine Learning · Computer Science 2019-10-01 Yusen Huo , Qinghua Tao , Jianming Hu

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

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

Traffic signal control aims to coordinate traffic signals across intersections to improve the traffic efficiency of a district or a city. Deep reinforcement learning (RL) has been applied to traffic signal control recently and demonstrated…

Machine Learning · Computer Science 2024-04-02 Liwen Zhu , Peixi Peng , Zongqing Lu , Xiangqian Wang , Yonghong Tian

Connected Autonomous Vehicles will make autonomous intersection management a reality replacing traditional traffic signal control. Autonomous intersection management requires time and speed adjustment of vehicles arriving at an intersection…

Multiagent Systems · Computer Science 2022-02-10 Udesh Gunarathna , Shanika Karunasekara , Renata Borovica-Gajic , Egemen Tanin

Scaling adaptive traffic-signal control involves dealing with combinatorial state and action spaces. Multi-agent reinforcement learning attempts to address this challenge by distributing control to specialized agents. However,…

Machine Learning · Computer Science 2021-09-22 François-Xavier Devailly , Denis Larocque , Laurent Charlin

Navigating unsignalized intersections in urban environments poses a complex challenge for self-driving vehicles, where issues such as view obstructions, unpredictable pedestrian crossings, and diverse traffic participants demand a great…

Robotics · Computer Science 2024-07-08 Pierre Haritz , David Wanke , Thomas Liebig

Traffic congestion in metropolitan areas is a world-wide problem that can be ameliorated by traffic lights that respond dynamically to real-time conditions. Recent studies applying deep reinforcement learning (RL) to optimize single traffic…

Machine Learning · Computer Science 2019-12-10 Zhi Zhang , Jiachen Yang , Hongyuan Zha

Episodic control, inspired by the role of episodic memory in the human brain, has been shown to improve the sample inefficiency of model-free reinforcement learning by reusing high-return past experiences. However, the memory growth of…

Systems and Control · Electrical Eng. & Systems 2024-07-24 Mukul Chodhary , Kevin Octavian , SooJean Han

Applying reinforcement learning to autonomous driving has garnered widespread attention. However, classical reinforcement learning methods optimize policies by maximizing expected rewards but lack sufficient safety considerations, often…

Robotics · Computer Science 2025-03-28 Bo Leng , Ran Yu , Wei Han , Lu Xiong , Zhuoren Li , Hailong Huang

Intelligent traffic lights in smart cities can optimally reduce traffic congestion. In this study, we employ reinforcement learning to train the control agent of a traffic light on a simulator of urban mobility. As a difference from…

Machine Learning · Computer Science 2021-12-28 Yue Zhu , Mingyu Cai , Chris Schwarz , Junchao Li , Shaoping Xiao

The use of Machine Learning (ML) and Artificial Intelligence (AI) in smart transportation networks has increased significantly in the last few years. Among these ML and AI approaches, Reinforcement Learning (RL) has been shown to be a very…

Artificial Intelligence · Computer Science 2025-09-22 Federico Taschin , Abderrahmane Lazaraq , Ozan K. Tonguz , Inci Ozgunes

Traffic simulations are commonly used to optimize urban traffic flow, with reinforcement learning (RL) showing promising potential for automated traffic signal control, particularly in intelligent transportation systems involving connected…

Systems and Control · Electrical Eng. & Systems 2025-09-19 Talha Azfar , Kaicong Huang , Andrew Tracy , Sandra Misiewicz , Chenxi Liu , Ruimin Ke

This work introduces an integrated approach to optimizing urban traffic by combining predictive modeling of vehicle flow, adaptive traffic signal control, and a modular integration architecture through distributed messaging. Using real-time…

Systems and Control · Electrical Eng. & Systems 2025-05-20 Ismail Zrigui , Samira Khoulji , Mohamed Larbi Kerkeb

Reinforcement learning (RL) is a promising data-driven approach for adaptive traffic signal control (ATSC) in complex urban traffic networks, and deep neural networks further enhance its learning power. However, centralized RL is infeasible…

Machine Learning · Computer Science 2019-03-13 Tianshu Chu , Jie Wang , Lara Codecà , Zhaojian Li

Inefficiencies in traffic flow through an intersection lead to stopping vehicles, unnecessary congestion, and increased accident risk. In this paper, we propose a traffic signal controller platform demonstrating the ability to increase…

Systems and Control · Electrical Eng. & Systems 2020-11-03 Frederik Baymler Mathiesen , Garey Fleeman

Effective traffic control is essential for mitigating congestion in transportation networks. Conventional traffic management strategies, including route guidance and ramp metering, often rely on state feedback controllers, which are used…

Machine Learning · Computer Science 2026-04-13 Giray Önür , Azita Dabiri , Bart De Schutter