直通运营下城轨市域线与市区线直通区段通过能力研究Carrying capacity of shared-track segment in through-operation between regional and urban lines of urban rail transit
詹毓超,叶茂,张人杰,金旭,赖元文
摘要(Abstract):
直通运营模式下,城轨市域线列车与市区线列车组合运营,列车制式与开行方案的差异影响着直通区段通过能力。本文基于列车追踪与越行的4种运营模式,考虑城轨市区线对直通列车运行速度的制约,采用基于图解的计算分析方法,将列车运行周期划分为若干个列车组合,运用异质列车旅行时间差与列车追踪间隔计算列车组合时间,提出了异质列车开行方案与制式差异复合影响下的直通区段通过能力计算方法。最后,依托南京地铁2号线与S6号线的线路数据与列车运行数据,通过设计的列车停站方案验证了方法有效性,并分析了直通区段通过能力的主要影响因素。研究结果表明,直通列车与本线列车开行比例相同时直通区段通过能力最小;随着本线列车开行比例的上升、直通列车越站次数减少,直通区段通过能力不断增大;直通列车采用非站站停追踪模式或越行1次模式时,直通区段通过能力相近,且相较于越行2次模式时通过能力更大;直通列车站站停模式下,直通区段通过能力受异质列车加、减速性能影响显著。研究成果可为实施直通运营的线路通过能力可行性判定与列车开行方案的制定提供参考。
关键词(KeyWords): 铁路运输;直通区段通过能力;城轨市域线;城轨市区线;直通运营
基金项目(Foundation): 国家重点研发计划项目(2017YFB1201202);; 江苏省交通运输科技项目(2020Y17)
作者(Author): 詹毓超,叶茂,张人杰,金旭,赖元文
DOI: 10.19961/j.cnki.1672-4747.2022.10.016
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