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火车时刻表的敏感性分析使用优化建模技术对铁路轨道网络进行

Sensitivity analysis of train schedule of a railway track network using an optimization modeling technique

作者：Malik Muneeb Abid;Muhammad Babar Khan;

关键词：Train,Railway,Scheduling,Optimum,Siding location,Optimization techniques

DOI：https://doi.org/10.1007/s12544-014-0153-1

发表时间：2015年

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摘要

简介列车运行建模有助于规划铁路走廊活动和优化资源利用。本文对单线铁路网的列车调度问题进行了建模，主要关注的是最小化总运营成本和与支线位置相关的延误。方法问题被建模为作业车间调度问题，并使用分支和求解绑定（B&B）技术。敏感性分析是通过改变支线和列车的数量来完成的。这里使用的方法量化了支线数量与列车冲突延误之间的相关性。目的是显示支线数量和位置对时间表的影响。结果结果被量化为冲突延迟和每个敏感性分析选项涉及的计算量。使用此分析提到了一些对该轨道的调度没有任何影响的支线。结论该技术可用于确定支线位置和数量方面的投资，因为与冲突相关的延误与壁板的数量和位置有直接关系。


Abstract

IntroductionModeling of train operations is helpful to plan railway corridor activities and optimize the use of resources. This paper models the train scheduling problem of a single line railway network with main concern to minimize total operational cost and delays with relation to position of sidings.MethodProblem is modeled as jobshop scheduling problem and solved using Branch and Bound (B&B) technique. Sensitivity analysis is done with changing the number of sidings and trains. Approach used here has quantified the relatedness between the number of sidings and train conflict delays. Objective was to show the impact of number and position of sidings on timetable.ResultsResults are quantified as conflict delays and computational effort involved for each option of sensitivity analysis. Some of sidings which don’t have any impact on scheduling of this track are mentioned using this analysis.ConclusionThis technique can be used to determine the investments in terms of location and number of sidings because conflict related delays has direct relation with number and position of sidings.


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