On Distribution Center Location For Emergency Logistics

A primary function of Emergency Logistics Management is to select the location of emergency distribution center, and provide emergency response resources adequate and timely to the accident. For example,in urban planning,decision-makers often have to select the location of emergency services point, Such as the110 alarm processing center, fire brigade, first aid center, traffic control points etc.To ensure that certain locations in cities when an incident Occurred, the emergency service facilities is to reach in the shortest time for service.Location of service points delivering emergency management is essential because emergency services will be placed in an appropriate location point, not only to reduce the costs, but also to guarantee the timeliness of providing emergency supplies, thus avoid greater losses.Currently, there are many research scholars are given models about emergency location problem, including absolute center model, the median model, set covering and maximal covering model and various extended forms, there will be queuing theory comprehensive application of DEA methodology to emergency location, and obtain a number of breakthrough results.Based on the comprehensive research at home and abroad ,this paper is introduced the emergency logistics knowledge and our pool of emergency relief supplies status briefly, summarized the advantages and disadvantages of some common location model.The paper is focused on emergency logistics distribution center location of two-stage approach:The first stage, a preliminary site selection,From a macro level, consider the impact of emergency logistics distribution center of the macro-factors that the natural condition, and environmental factors, social factors, economic factors and other relevant factors, view of these factors is complex and difficult to quantify, it is proposed to use AHP to establish the system evaluation model to evaluate the merits of alternative addresses;The second stage: the specific location,In the first stage, based on depth to the micro level,Analysis of emergency logistics distribution center emergency rescue facilities should reflect fairness, efficiency, rapid response and excess coverage.Accordingly, these features set up to target the multi-objective decision making model,The model combines the p-center location model commonly used model, p-median model and the advantages of maximum coverage model,To better meet the needs of disaster relief work needs.And concrete examples to verify the location method.Finally, this paper is solved the problem of setting the temporary distribution point after the disaster emergency,through a briefly analysis of its Examples.