Operations Research Transactions ›› 2011, Vol. 15 ›› Issue (4): 93-101.
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WANG Chuan-Xu-, JIANG Liang-Kui
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Abstract: To analyzes disaster spots inventory policy with unidirectional transshipment among disaster spots in emergency relief logistics, the situation considered in this paper is a single-echelon system consisting of a number of disaster spots with unidirectional emergency item transshipment. Firstly, based on fixed replenishment point for individual disaster spots, a model is developed to determine the fraction of demand directly satisfied from stock at disaster spots and the fraction of demand satisfied by transshipment from stock at other disaster spots. Secondly, an integer non-linear program model is developed to determine the optimal relief item replenishment point for individual disaster spots, in which the time-based relief efficiency constraint is considered. Meanwhile, an implicit enumeration-based method is developed to solve the proposed model. At last, a numerical example is given to demonstrate the efficiency and practicability of the model.
Key words: unidirectional transshipment, replenishment point, non-linear program, time-based relief efficiency
WANG Chuan-Xu-, JIANG Liang-Kui. Disaster Spots Inventory Policy with Emergency Item Unidirectional Transshipment[J]. Operations Research Transactions, 2011, 15(4): 93-101.
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https://www.ort.shu.edu.cn/EN/Y2011/V15/I4/93