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Improving On-time Performance For Long-distance Passenger Trains Operating On Freight Routes

机译:改善货运路线上运行的长途旅客列车的准时性能

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This paper discusses on-time performance (OTP)for long-distance passenger trains operating over tracks that are owned and operated by freight railroads. OTP is addressed primarily from the point of view of the host railroad. A brief literature review identifies practices that are commonly used by railroads and other modes to develop and implement achievable schedules. Analysis of travel time, train delay and other data for Amtrak trains operating on CSXT's 195 Corridor documents actual levels of reliability and the primary causes of poor OTP. Comparison of performance for passenger trains and various classes of freight trains demonstrates that Amtrak trains operate much faster and more reliably than CSXT's trains. Potential means of improving the OTP of Amtrak trains are discussed. While providing high quality track with sufficient capacity is the long-run solution for upgrading OTP, a short-run solution is to base schedules on past performance ("experience-based scheduling"). After Amtrak increased the schedule of the Auto Train by one hour in 2006, OTP improved from less than 10% in early 2006 to 82% for the first half of 2008. Analysis of the travel time distributions of the other long-distance Amtrak trains operating on CSXT's 195 Corridor from 2004 to 2008 indicates that a similar schedule increase would also have brought these other trains close to Amtrak s goal of 80% OTP. Schedules that reflect track maintenance requirements and other known seasonal and weekly factors would allow further improvements in measured OTP. Additional measures of performance concerning the probability and extent of late arrivals would be beneficial to travelers in planning their trips.
机译:本文讨论了由货运铁路拥有和运营的长途客运列车的准时性能(OTP)。 OTP主要从主铁路的角度来解决。简短的文献综述确定了铁路和其他方式通常用于制定和实施可实现的时间表的实践。对在CSXT 195号走廊运行的Amtrak列车的行驶时间,列车延误及其他数据的分析记录了实际的可靠性水平和OTP不良的主要原因。对旅客列车和各种货运列车性能的比较表明,Amtrak列车的运行速度比CSXT的列车快得多,可靠性更高。讨论了改善美铁列车OTP的潜在手段。长期的解决方案是为OTP升级提供长期的解决方案,同时提供具有足够容量的高质量轨道,而短期解决方案则是基于过去的性能制定计划(“基于经验的计划”)。自从美铁在2006年将自动火车的时间表增加了一个小时之后,OTP从2006年初的不到10%上升到2008年上半年的82%。分析了其他长途美铁火车运行的时间分布CSXT在2004年至2008年间在195走廊上进行的研究表明,类似的日程安排上的增加也将使这些其他列车接近Amtrak设定的80%OTP的目标。反映赛道维护要求以及其他已知的季节性和每周因素的时间表可以进一步改善测得的OTP。关于迟到的可能性和程度的其他绩效衡量指标将对旅行者计划旅行有所帮助。

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