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Research of location-routing problem in emergency logistics system for post-earthquake transitional stage
WANG Yong, XU Dongchuan, NONG Lanjing
Journal of Computer Applications    2015, 35 (1): 243-246.   DOI: 10.11772/j.issn.1001-9081.2015.01.0243
Abstract708)      PDF (604KB)(510)       Save

During the post-earthquake transitional phase, there are relief goods recycling and environmental protection problems. In the premise of meeting the basic demand of people in disaster area, the Location-Routing Problem (LRP) model of emergency logistics facilities with forward and reverse directions was built. First, according to the characteristics that the recycled materials could be partially transported, a mathematical model was established in which the objective function was minimum time of emergency system. Second, a two-phase heuristic algorithm was used to solve the model. Finally, the example analyses verified the feasibility of the model and algorithm. The experimental results show that, compared with the traditional one-way LRP model, the objective function value of the proposed method decreases by 51%. The proposed model can effectively improve the efficiency of emergency logistics system operation and provide auxiliary decision support for emergency management department.

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