基于重要性评估的铁路货车终到站停留时间压缩策略研究

Dwell Time Compression Strategy for Railway Freight Vehicles at Terminal Stations Based on Importance Assessment

铁路货运车辆在终到站的停留时间,既能体现车辆的利用效率,又能通过与货物绑定,体现车站内装卸、调度等总体的作业效率。由此,有必要通过合理的方式压缩铁路货运车辆在终到站的停留时间,进而加深对车站作业效率的认识,提升车站作业效率。现有压缩策略多通过优化组织结构、增加作业考核等方式进行,缺乏可操作性和针对性。研究在分析车辆在终到站停留时间构成与影响因素基础上,整理了车辆在终到站停留时间压缩主要方法,进而论证了车辆在终到站停留时间压缩策略中引入重要性评估的必要性。在此基础上,研究了车辆在终到站停留时间影响因素重要性评估方法,包括相关系数评估和平均下降精度评估,进而得出重要度评估向量。通过选择实际车站数据,计算出该站车辆在终到站停留时间重要度评估向量。最终,基于重要度评估向量,提出了该站车辆在终到站停留时间压缩策略,进一步验证了通过重要性评估优化车辆在终到站停留时间压缩策略的有效性,为提升车站作业效率、优化物流服务能力提供了一种可行方法。

The dwell time of railway freight vehicles at the terminal station reflects not only the efficiency of vehicle utilization but also the overall operational efficiency of loading,unloading,and scheduling within the station by binding with goods.Therefore,it is necessary to compress the dwell time of railway freight vehicles at terminal stations in a reasonable way,thereby deepening the understanding of station operation efficiency and improving station operation efficiency.Existing compression strategies often rely on methods like optimizing organizational structure and increasing production assessment,which lack operability and pertinence.On the basis of analyzing the composition and influencing factors of dwell time of railway freight vehicles at terminal stations,this paper summarized the main dwell time compression methods for railway freight vehicles at terminal stations and then demonstrated the necessity of introducing an importance assessment of dwell time compression strategy for railway freight vehicles at terminal stations.On this basis,a method for evaluating the importance of factors affecting the dwell time of railway freight vehicles at terminal stations was studied,including the assessment of correlation coefficients and the assessment of mean decrease accuracy,so as to obtain an importance assessment vector.Then,the importance assessment vector for the dwell time of railway freight vehicles at terminal stations was calculated by using example station data.Finally,based on the importance assessment vector,a dwell time compression strategy for railway freight vehicles at terminal stations was proposed,further verifying the effectiveness of optimizing the dwell time compression strategy for railway freight vehicles at terminal stations through importance assessment.This provided a feasible method for improving station operation efficiency and optimizing logistics service capabilities.