Research on emergency facilities location problem and its greedy dropping heuristic algorithm response to public health emergency
Hu Jiaxiang 1,2 , Li Jian 3
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12A) 425-430
1 College of Economics & Management, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu, China
2 China Center for Food Security Research, Nanjing Agricultural University, 1 Weigang, Nanjing, Jiangsu, China
3 College of Engineering, Nanjing Agricultural University, 40 Dianjiangtai Road, Pukou district, Nanjing, Jiangsu, China
When a public health emergency, such as an anthrax attack, happens in many areas, it is vital to deploy the medical supplies to the affected people quickly. In this condition, emergency facilities, which provide medical supplies, play an important role in rescue management. The decision of where to locate the emergency facilities becomes very critical, as it determines the efficiency and effectiveness of the emergency management. In this paper, a multi-objective programming model that balances the total cost of emergency facilities and effect of rescue is proposed, and the effect of rescue is measured by the ratio of the arrival quantity of the rescue material to the demand. And then the model is solved by the Greedy Dropping heuristic after the multi-objective function is transformed into a single-objective. Finally, a practical example is given to illustrate the application of the model.