救灾供应链网络最后一英里分配的车辆调度策略

IF 4.5 3区 管理学 Q1 OPERATIONS RESEARCH & MANAGEMENT SCIENCE
Robert A. Cook, Emmett J. Lodree
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引用次数: 0

摘要

本文研究了具有多个暂存区(SAs)和一个配送点(POD)的救灾供应链中供需不确定性对最后一英里配送的影响。sa的作用是接收和组织救援物资的临时仓库,这些物资随后被运送到应急救援中心,在那里分发,以满足灾难幸存者的随机需求。本文的目的是评估将车辆从机场调度到卸货点的政策的有效性,以尽量减少卸货点未满足的需求。先前的文献表明,连续调度车辆是一种有效且实用的政策,但尚未在具有多个暂存区的救援网络上进行测试。本文建立了连续调度是最优策略的准则,并通过计算实验检验了连续调度的性能。由于随机动态规划模型不能直接求解,我们采用近似动态规划方法求解问题实例。我们的研究结果表明,CD政策的效果不如以前的研究那么好,但从实际的角度来看,它可能是最好的选择。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Vehicle dispatching policies for last mile distribution in a disaster-relief supply chain network

Vehicle dispatching policies for last mile distribution in a disaster-relief supply chain network

This study considers the impact of supply and demand uncertainty on last-mile distribution in a disaster-relief supply chain with multiple Staging Areas (SAs) and one Point of Distribution (POD). The SAs function as temporary warehouses for receiving and organizing relief supplies that are subsequently transported to the POD where they are distributed to meet the stochastic demands of disaster survivors. The goal of this paper is to evaluate the effectiveness of policies for dispatching vehicles from the SAs to the POD in an effort to minimize unsatisfied demand at the POD. Prior literature suggests that continuously dispatching vehicles is an effective and pragmatic policy, but it has not been tested on a relief network with multiple Staging Areas. This study establishes criteria under which continuous dispatching (CD) is an optimal policy and examines its performance through computational experiments. We solve problem instances using approximate dynamic programming since the stochastic dynamic programming model cannot be solved directly. Our findings suggest that the CD policy does not perform as well as in previous studies, but may be the best available option from a practical perspective.

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来源期刊
Annals of Operations Research
Annals of Operations Research 管理科学-运筹学与管理科学
CiteScore
7.90
自引率
16.70%
发文量
596
审稿时长
8.4 months
期刊介绍: The Annals of Operations Research publishes peer-reviewed original articles dealing with key aspects of operations research, including theory, practice, and computation. The journal publishes full-length research articles, short notes, expositions and surveys, reports on computational studies, and case studies that present new and innovative practical applications. In addition to regular issues, the journal publishes periodic special volumes that focus on defined fields of operations research, ranging from the highly theoretical to the algorithmic and the applied. These volumes have one or more Guest Editors who are responsible for collecting the papers and overseeing the refereeing process.
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