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Development of a Logistics Model for Disaster Relief Operations

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  • 災害救援活動のためのロジスティクス・モデルに関する研究
  • サイガイ キュウエン カツドウ ノ タメ ノ ロジスティクス ・ モデル ニ カンスル ケンキュウ

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Abstract

On March 11, 2011, the Great East Japan Earthquake hit Japan. Through the earthquake, awareness of disaster prevention has recently been increasing in Japan. Additionally, in the field of logistics, many studies on transportation and delivery during disasters are being conducted; the subject being relief goods not reaching the affected area. In this study, from the point of flow of goods, we focus on the relationship between the shelter and municipal-level collection point. The purpose of this study is to propose a logistics model that minimizes unsatisfied demand for the victims during the chaos of a disaster. In particular, since there is a variety of goods in the shelter, meeting victim's demands is required. We therefore propose a model using the idea of a multi-commodity network flow problem. In addition, to meet victim's demands equally, we incorporate a constraint on equality. In order to confirm the proposed logistics model, a case study is carried out. We focused on the number of evacuees in Soma City, Fukushima Prefecture, an area damaged by the Great East Japan Earthquake. Finally, we perform numerical experiments and confirm the effectiveness of the proposed model.

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