PEMS
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This study focuses on the application of the PeMS dataset, specifically the Pems03, Pems04, and Pems08 subsets, for traffic flow prediction and analysis. These datasets, sourced from the California Performance Measurement System (PeMS), provide real-time traffic sensor data from different regions, including the Bay Area (Pems03), Southern California (Pems04), and the Los Angeles area (Pems08). We leverage advanced machine learning and deep learning techniques, such as Long Short-Term Memory (LSTM) networks and Graph Neural Networks (GNNs), to model both spatial and temporal dependencies in traffic data. The primary aim of this research is to improve the accuracy of traffic flow forecasting by incorporating the distinctive features of each dataset, such as regional traffic patterns, sensor placement, and varying traffic conditions. Experimental results show significant improvements in prediction performance for short-term and long-term traffic flow forecasts, compared to traditional methods. Our findings have important implications for traffic management systems, providing a foundation for more effective congestion management and optimized routing strategies in urban traffic networks.
本研究聚焦于交通流量预测与分析任务中PeMS数据集的应用,具体涵盖Pems03、Pems04与Pems08三个子集。上述数据集源自加州性能测量系统(California Performance Measurement System,简称PeMS),采集自不同区域的实时交通传感器数据,覆盖湾区(对应Pems03)、南加州(对应Pems04)以及洛杉矶地区(对应Pems08)。 本研究采用长短期记忆网络(Long Short-Term Memory,简称LSTM)与图神经网络(Graph Neural Networks,简称GNNs)等先进机器学习与深度学习技术,对交通数据中的时空依赖关系进行建模。本研究的核心目标是通过融合各数据集的独有特征——包括区域交通模式、传感器部署方案以及差异化的交通运行状况——提升交通流量预测的精度。 实验结果表明,相较于传统方法,本研究方法在短期与长期交通流量预测任务中均实现了预测性能的显著提升。本研究成果对交通管理系统具有重要实践意义,可为城市交通网络中更高效的拥堵治理与优化路径规划策略提供理论支撑。



