Study Of Replenishment Strategy In Emergency Resource Allocation

Nowadays, emergency events such as natural disasters, accidents, public health events and social safety events break out frequently, causing great losses of human lives and properties. In order to avoid and fight against these emergency events, we need to study their mechanism and propose effective methods on emergency management. Emergency resource allocation is one of the key problems because it is an important guarantee of emergency management.In this paper, the cycle of emergency management is divided into three steps according to their emergency degree. The first step involves resource reserve based on forecast before event and resource consumption right after event breaks out. The second step refers to the emergency resource dispatching stage during rescue time. In this urgent period, time is more important than cost. The third step is reconstruction after the event being under control. It is not so urgent, so we should consider cost reduction.Two models representatively based on constant consumption rate and constant resource demands are raised and studied in this paper. The optimization objects are weighted time and cost. In solving models, best amount of emergency resources distributed and the replenishment strategies of three stages are founded. Numerical examples are simulated using MATLAB. The results of model simulations show that they can effectively reduce time and cost considering some uncertainties.