Traffic signal control is a critical task in intelligent transportation systems, yet conventional fixed-time and rule-based methods often struggle to adapt to dynamic traffic demand and provide limited decision interpretability. This study proposes an LLM-augmented traffic signal control framework that integrates LSTM-based short-term traffic state prediction, predictive phase selection, structured large language model reasoning, and safety-constrained action filtering. The LSTM module forecasts future queue length, waiting time, vehicle count, and lane occupancy based on recent intersection-level observations. A predictive controller then generates candidate signal actions, while the LLM module evaluates these actions using structured traffic-state inputs and produces congestion diagnoses, phase adjustment recommendations, and natural-language explanations. To ensure operational reliability, all LLM-generated recommendations are validated by a safety filter before execution. Simulation-based experiments in SUMO compare the proposed method with fixed-time control, rule-based control, and an LSTM-based predictive baseline under balanced demand, directional peak demand, and sudden surge scenarios. The results indicate that the proposed framework improves traffic efficiency, especially under dynamic and non-recurrent traffic conditions, while maintaining zero constraint violations after safety filtering. Overall, this study demonstrates that LLMs can enhance traffic signal control when used as constrained reasoning and decision-support modules rather than direct low-level controllers. Keywords: Intelligent Transportation Systems; Traffic Signal Control; Large Language Models; LSTM; Traffic State Prediction; Decision Support; Safety-Constrained Control; SUMO Simulation.
Open-TI: Open Traffic Intelligence with Augmented Language Model
School of Computing and Augmented Intelligence, Arizona State University(亚利桑那州立大学计算与增强智能学院);School of Sustainable Engineering and the Built Environment, Arizona State University(亚利桑那州立大学可持续工程与建筑环境学院)
Intelligent Detection and Mitigation of Carpet-Bombing DDoS Attacks in SDN Using Retrieval-Augmented Generation and Large Language Models
College of Electronics and Information Engineering, Shenzhen University(深圳大学电子与信息工程学院);ICNLab, Shenzhen Graduate School, Peking University(北京大学深圳研究生院ICN实验室)
School of Computer Science and Technology(计算机科学与技术学院);Taiyuan Normal University(太原师范学院);Institute of Computer Science(计算机科学研究所);University of Göttingen(哥廷根大学);James Watt School of Engineering(詹姆斯·瓦特工程学院);University of Glasgow(格拉斯哥大学);Laboratory of Intelligent Home Appliances(智能家电实验室);College of Science and Technology(科学与技术学院);Ningbo University(宁波大学)
Simulation-Driven Vehicular Traffic Data Augmentation: Extending Sensor Coverage Through Virtual Sensing
Aix-Marseille University(艾克斯-马赛大学);CNRS(法国国家科学研究中心);LIS(信息科学与系统实验室);Université Libre de Bruxelles(布鲁塞尔自由大学);WEL Research Institute(WEL 研究院);University of Leeds(利兹大学);School of Computer Science(计算机学院)
Indian Stock Market Prediction using Augmented Financial Intelligence ML
University College London(伦敦大学学院);National Institute of Technology Patna(巴特那国立理工学院);SRM University AP(SRM大学安得拉邦校区);Amirkabir University of Technology, Tehran Polytechnic(阿米尔卡比尔理工大学(德黑兰理工学院));IIT Kanpur(印度理工学院坎普尔分校)
Automatic driving lane change safety prediction model based on LSTM
Trine University(特莱恩大学);Yantai University(烟台大学);University of Electronic Science and Technology of China(电子科技大学);Northern Arizona University(北亚利桑那大学);University of Aberdeen(阿伯丁大学)
ADLight: A Universal Approach of Traffic Signal Control with Augmented Data Using Reinforcement Learning
School of Science and Engineering, The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)理工学院);Shanghai AI Laboratory(上海人工智能实验室);School of Data Science, The Chinese University of Hong Kong, Shenzhen(香港中文大学(深圳)数据科学学院);Shenzhen Research Institute of Big Data(深圳大数据研究院);SenseTime Group Limited(商汤科技)
针对强化学习交通信号控制需按交叉口结构重新训练的问题,提出 ADLight,通过统一智能体设计与 movement shuffle 数据增强训练通用模型,在 SUMO 中以约5%等待时间代价节省逾80%训练时间。
User-Centric Communication Service Provision for Edge-Assisted Mobile Augmented Reality
School of Telecommunications Engineering, Xidian University(电子科技大学电信工程学院);Department of Electrical and Computer Engineering, University of Waterloo(滑铁卢大学电气与计算机工程系);School of Information Technology, Carleton University(卡尔顿大学信息科技学院)
GARLIC: GPT-Augmented Reinforcement Learning with Intelligent Control for Vehicle Dispatching
City University of Hong Kong(香港城市大学);Jilin University(吉林大学);Zhejiang University of Technology(浙江工业大学);Southern University of Science and Technology(南方科技大学);Harbin Institute of Technology (Shenzhen)(哈尔滨工业大学(深圳));Alibaba Group(阿里巴巴集团)