基于运行图压缩的高速铁路区段通过能力研究

Study of District Carrying Capacity for High-Speed Railway based on Train Working Diagram Compression

区段客流特征与列车开行结构是影响铁路能力利用效率的重要因素,基于实际运行图分析区段通过能力对不改变基础设施的条件下提高行车密度具有重要意义。在UIC406运行图压缩法基础上,结合列车最小间隔时间法计算原理,提出一种改进的高速铁路区段通过能力计算方法,该方法综合考虑实际运行图的最小列车周期、平均最小列车间隔时间、能力空费等要素,分析计算京沪高速铁路各区段的通过能力及利用率,提出提高大站停列车连发比例、规律化列车停站等提升线路能力效率的优化建议,进一步加强京沪高速铁路的线路能力。

The characteristics of traffic flow and train operation structure are important factors affecting the utilization efficiency of railway capacity.The analysis of section capacity based on train working diagram is of great significance to improve the traffic density without changing the infrastructure.This paper proposes an improved capacity calculation method for high-speed railway district based on UIC406 train working diagram compression method and train minimum interval method,which considers the factors of train diagram,such as minimum train cycles,minimum average interval and capacity available coefficient.Based on the actual diagram,the carrying capacity and utilization ration of Beijing-Shanghai high-speed railway are calculated and analyzed,and the optimization suggestions for elevating the utilization of railway capacity are put forward.