动车组转线折返作业时间计算方法研究

摘要

The turnaround time is a basic input to train timetabling. The paper categorizes the turnaround operation of CRH trains into two groups, namely, the turn-back operation via crossover, and the turn-back operation via turnaround track. The detailed procedures of the two operation methods are discussed via graphic analyses, and the calculation methods of the turnaround time are proposed. A numeric example of the Wu-Guang high-speed railway is provided, and a new turnaround operation plan is proposed to shorten the turnaround time.%准确的动车组转线折返作业时间标准可以为运行图编制提供参数基础,有利于提高运行图编制作业效率.本文将动车组转线折返作业分为站后渡线折返和折返线折返两种方式,对其作业流程进行了探讨,通过图解法分析了折返作业过程中旅客上下车、列车转线作业、保洁作业、吸污上水作业、司机换乘作业等单项作业的具体时间,直观地得出整体作业流程和各项作业之间的先后关系,并在此基础上提出转线折返作业时间的计算方法.最后,以武广高速铁路为例对动车组转线折返作业时间标准进行了计算并对转线折返作业时间的缩减提出相应的优化方案.