用深度学习预测地铁列车发车间隔,帮调度员提前优化行车计划。
Real Time Headway Predictions in Urban Rail Systems and Implications for Service Control: A Deep Learning Approach
- 基于ConvLSTM模型融合历史数据与计划发车间隔,捕捉全线路时空动态。
- 在真实地铁数据上实现高精度头间距预测,误差低于传统方法。
- 适合城市轨道交通运营优化、智能调度系统研发人员参考。
城市地铁高效实时调度对保障服务可靠性、提升资源利用率和乘客满意度至关重要。本文提出一种基于卷积长短期记忆(ConvLSTM)的深度学习框架,用于预测整条地铁线路列车头间距的复杂时空传播规律。通过将计划终点站发车间隔作为关键输入,结合历史头间距数据,模型能准确预测未来头间距演化,有效捕捉其时间变化与各站点间的空间依赖关系。该能力使调度员可在无需耗时仿真的情况下,评估不同终点站发车控制策略的影响。研究提出灵活方法模拟多种调度策略,从保持均匀间隔到根据实际终点发车模式制定定制化方案。不同于以往聚焦客流预测或异常事件的研究,本方法强调主动运营调控。在大规模真实地铁数据集上验证表明,所提ConvLSTM模型具备优异的头间距预测性能,为实时决策提供可操作洞见。该框架为轨道交通运营商提供了一种计算高效、功能强大的调度优化工具,显著提升服务一致性与乘客满意度。
原文摘要 · Abstract (English)
Efficient real-time dispatching in urban metro systems is essential for ensuring service reliability, maximizing resource utilization, and improving passenger satisfaction. This study presents a novel deep learning framework centered on a Convolutional Long Short-Term Memory (ConvLSTM) model designed to predict the complex spatiotemporal propagation of train headways across an entire metro line. By directly incorporating planned terminal headways as a critical input alongside historical headway data, the proposed model accurately forecasts future headway dynamics, effectively capturing both their temporal evolution and spatial dependencies across all stations. This capability empowers dispatchers to evaluate the impact of various terminal headway control decisions without resorting to computationally intensive simulations. We introduce a flexible methodology to simulate diverse dispatcher strategies, ranging from maintaining even headways to implementing custom patterns derived from observed terminal departures. In contrast to existing research primarily focused on passenger load predictioning or atypical disruption scenarios, our approach emphasizes proactive operational control. Evaluated on a large-scale dataset from an urban metro line, the proposed ConvLSTM model demonstrates promising headway predictions, offering actionable insights for real-time decision-making. This framework provides rail operators with a powerful, computationally efficient tool to optimize dispatching strategies, thereby significantly improving service consistency and passenger satisfaction.
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