Study On Emergency Supplies Repository Location Optimization Model

Emergency supplies repositories are the support of emergency rescue,and are a kind of emergency facilities which serve for the emergency events.Emergency supplies repositories location problem is the focus of emergency facility location field,which is related to the urgency of emergency rescue and the timeliness of emergency material distribution.Natural disasters and the destructive power of all kinds of unconventional emergencies,the shortage of emergency supplies repositories,emergency material reserve,and the unreasonable facts about location decision,these situations are pressing for emergency decision-making departments to speed up the construction of emergency management system.But construction of emergency management system can not be separated from the construction of supplies repositories location model and the formulation of emergency material allocation decision.Based on the analysis of the present situation of the research on facilitiy location problems and emergency supplies repository problems,the thesis analyzes the background and characteristics of emergency supplies repositories location,forms the optimization decisionmaking method of emergency supplies repositories location and emergency material distribution,constructs the location optimization model based on different optimization objectives and constraints,from the perspective of demand region and emergency service quality of supplies repositories,considering the factors such as economy,timeliness,uncertainty and geographical constraints at the same time.The decision-making of emergency material allocation and location is studied through analyzing the characteristics and decision-making process of location and emergency material distribution,as well as providing ideas,theoretical support and algorithm strategies for emergency decision making mechanism in emergency supplies repository location and other facility location problems.The research shows that the optimal model based on time satisfaction of emergency supplies repositories location can effectively achieve the establishment of emergency reserve allocation scheme.In the demand region with different scale and different time satisfaction,the location schemes achieve good effects,which provides decision information for the location scheme and the construction scale of supplies repositories.A location model with capacity constraints based on time satisfaction for emergency supplies repository realizes scientific location,emergency material collaborative distribution and safety inventory,improves the equity of material distribution under different demand regions and the quality of emergency service of emergency supplies repositories.The robust optimization location model based on uncertain factors obtains a robust optimal location scheme and the location results have good robustness,which is convenient for decision makers to effectively deal with the adverse effects caused by uncertain factors,effectively avoid the risk.The construction of emergency supplies repositories location optimization model based on time satisfaction with obstacle constraints throughout the course of location decisions,solves the location problem,collaborative distribution of emergency supplies and optimization path around the obstacle simultaneously,shows the multiple effects of the decision-making factors,such as timeliness,economy and reliability.Besides,the model achieves scientific location decision under obstacle constraints and different scale.The research results will provide a theoretical and methodological design for emergency supplies repositories location and other facility location problems.