An M/M/C/K queueing system in an inventory routing problem considering congestion and response time for post-disaster humanitarian relief: a case study

Mahdi Masoumi, A. Aghsami, M. Alipour-Vaezi, F. Jolai, Behdad Esmailifar
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引用次数: 16

Abstract

PurposeDue to the randomness and unpredictability of many disasters, it is essential to be prepared to face difficult conditions after a disaster to reduce human casualties and meet the needs of the people. After the disaster, one of the most essential measures is to deliver relief supplies to those affected by the disaster. Therefore, this paper aims to assign demand points to the warehouses as well as routing their related relief vehicles after a disaster considering convergence in the border warehouses.Design/methodology/approachThis research proposes a multi-objective, multi-commodity and multi-period queueing-inventory-routing problem in which a queuing system has been applied to reduce the congestion in the borders of the affected zones. To show the validity of the proposed model, a small-size problem has been solved using exact methods. Moreover, to deal with the complexity of the problem, a metaheuristic algorithm has been utilized to solve the large dimensions of the problem. Finally, various sensitivity analyses have been performed to determine the effects of different parameters on the optimal response.FindingsAccording to the results, the proposed model can optimize the objective functions simultaneously, in which decision-makers can determine their priority according to the condition by using the sensitivity analysis results.Originality/valueThe focus of the research is on delivering relief items to the affected people on time and at the lowest cost, in addition to preventing long queues at the entrances to the affected areas.
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灾后人道救援中考虑拥塞和响应时间的库存路由问题中的M/M/C/K排队系统:案例研究
由于许多灾害具有随机性和不可预测性,为减少人员伤亡和满足人们的需求,灾后准备好面对困难的条件至关重要。灾难发生后,最重要的措施之一就是向受灾群众运送救援物资。因此,本文旨在考虑边境仓库的趋同,为仓库分配需求点,并在灾难发生后为其相关救援车辆安排路线。设计/方法/途径本研究提出了一个多目标、多商品、多周期的排队-库存-路径问题,在该问题中,排队系统被应用于减少受影响区域边界的拥塞。为了证明所提模型的有效性,用精确的方法解决了一个小尺寸问题。此外,为了处理问题的复杂性,采用了一种元启发式算法来解决问题的大维度。最后,进行了各种敏感性分析,以确定不同参数对最优响应的影响。结果表明,所提出的模型可以同时优化目标函数,其中决策者可以根据条件利用灵敏度分析结果确定其优先级。独创性/价值研究的重点是如何以最低的成本将救援物资及时送达灾区,以及防止灾区入口处排起长队。
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来源期刊
CiteScore
6.40
自引率
20.00%
发文量
20
期刊介绍: The Journal of Humanitarian Logistics and Supply Chain Management (JHLSCM) is targeted at academics and practitioners in humanitarian public and private sector organizations working on all aspects of humanitarian logistics and supply chain management. The journal promotes the exchange of knowledge, experience and new ideas between researchers and practitioners and encourages a multi-disciplinary and cross-functional approach to the resolution of problems and exploitations of opportunities within humanitarian supply chains. Contributions are encouraged from diverse disciplines (logistics, operations management, process engineering, health care, geography, management science, information technology, ethics, corporate social responsibility, disaster management, development aid, public policy) but need to have a logistics and/or supply chain focus. JHLSCM publishes state of the art research, utilizing both quantitative and qualitative approaches, in the field of humanitarian and development aid logistics and supply chain management.
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