高速铁路列车运行图均衡性研究

以相邻间隔时间期望方差及相间间隔时间均值和方差为计算指标,描述车站的列车分布及顺序均衡性。运用均衡性指标矩阵及均衡度指标向量来评价列车实际与计划运行图的均衡性。结果表明,由于干扰影响列车间隔时间大小波动明显,列车到达均衡性整体优于列车出发均衡性,长沙南站时间间隔分布及顺序均衡性最差,衡山西站、株洲西站、长沙南站到发均衡度最差,应结合列车晚点情况重点考虑运行图结构优化。

Equilibrium of Train Diagram of High-Speed Railway Based on Data Analysis

Taking the expected variance of adjacent time intervals and the mean and variance of inter-time intervals as calculation indexes,the arrival and departure time intervals distribution and sequence equilibrium of stations are described.Finally,the equilibrium indexes matrix and the equilibrium index vector are obtained to evaluate the equilibrium between the actual train and the map.The results show that the arrival equilibrium of trains is better than the departure equilibrium,the distribution of time interval and the sequence of time interval is the worst in Changsha South Station,and the arrival-departure equilibrium of Hengshan,Zhuzhou West Station and Changsha South Station is the worst.