Research On The Model For Dispatching Natural Disaster Emergency Relief Materials Orienting Multi-level Depots

China is one of countries with frequent natural disaster every year. naturaldisasters make tremendous loss to the state and the people life and property.Because of the sudden and temporary characteristics of natural disasters, rapidrelief transportion and persistent relief supplies is the core for disastermitigation and disaster relief activities during emergency responses. So Chinahas established the national natural disaster relief materials storage systemcovering most provinces of country for storing basic and major disaster reliefmaterials. In the background of natural disaster emergency responses, there existmany decision-making problems such as relief materials’ scheduling,transportation and distribution. Now researches about these problems are fewwhether at home or abroad. This thesis intends to study these problems, fordeveloping national emergency relief supplies scheduling system.This dissertation provides some new insights into ensemble learnling:(1)Based on the analysis to China’s natural disaster relief materials storage system,and methods for dispatching and transporting relief materials stored in materials storagesystem, which used by Ministry of Civil Affairs of the People’s Republic of China and localcivil affairs branches at various levels, a multi-level depots priority model is proposed.(2) On the basis of that, aimed to two practical materials scheduling backgrounds,i.e multi-depot, multi-disaster areas and single-material, and multi-depot, single-disasterareas and multi-material, two multi-objective optimization emergency relief schedulingmodels with the earliest emergency start time and the least number of depot areestablished respectively.(3)For solving these two models, firstly fuzzy optimal method is used to dotransformation for the optimization goals, then two polynomial model solutionalgorithms are designed and their time complexity are analyzed. And, examples of thesetwo models are illustrated. These two models and their solution algorithm have beensuccessfully integrated into the national emergency relief materials scheduling system,and were applied in designing relief materials scheduling simulation schemes for2010YuShu earthquake in QingHai.