Optimization of evacuation based on PERT and shortest path theory

A new optimization method of evacuation which is based on PERT computing method and shortest path theory is enumerated,and the optimal evacuation path in a certain building can be obtained by this optimization method.Use PERT computing method to figure out every evacuation path weight of a certain building,and then use shortest path theory to analyze and calculate every evacuation path weight to obtain the optimal evacuation path.