考虑路况与设施失效的应急物流中心选址研究

Research on the Site Selection of the Emergency Logistics Center Considering the Road Conditions and Facility Failure

自然灾害发生后,应急物流中心的选址成为决策者面临的紧迫任务之一。选址决策的准确性和合理性直接影响到救援物资的快速分发、救援行动的效率,以及受灾人群的生命安全。文章旨在探讨在自然灾害发生后,基于需求不确定、道路状况和设施失效风险下的应急物流中心选址问题。从两个重要角度出发:一是考虑道路状况系数与弧阻抗系数,从而确定实际运输距离及速度,为应急物流中心选址提供参考;二是建立情景合集,考虑配送中心的设施失效风险,确保受灾地区物资分配的连续性和稳定性。文章基于时间和成本两个目标构建模型并通过NSGA-Ⅱ算法对其求解,以便决策者根据不同需求选取不同的选址方案,最大限度减少救援时间或救援成本,保障受灾人民和地区的安全和福祉。

After the occurrence of natural disasters,the location of emergency logistics centers has become one of the urgent tasks faced by decision-makers.The accuracy and rationality of site selection decisions have a direct impact on the rapid distribution of relief materials,the efficiency of rescue operations,and the lives of the affected people.The purpose of this paper is to explore the location of emergency logistics centers in the aftermath of natural disasters based on the risk of uncertain demand,road damage and facility failure.The paper starts from two important perspectives:one is to consider the road condition coefficient and arc impedance codfficient to determine the actual transportation distance and time,so as to provide a reference for the location of the emergency logistics center,and the other is to establish a scenario collection to consider the risk of facility failure of the distribution center to ensure the continuity and stability of material distribution in the affected areas.In this paper,the model is constructed based on the two objectives of time and cost,and the NSGA-II algorithm is used to solve it,so that decision-makers can choose different site selection schemes according to different needs,minimize the rescue time or rescue cost,and ensure the safety and well-being of the affected people.