Study On The Prediction Of Mall Evacuation Time Based On Grid Method

Nowadays,shopping malls have brought great convenience for people’s lives.At the same time,the security has increasingly become the focus of attention.When the mall was fire,completing the evacuation security quickly and efficiently could avoid casualties,and could save time for the fireman,so that,save the loss of economic assets.In this paper,developed the research on the evacuation time prediction of large shopping malls.According to the architectural characteristics of modern shopping malls,the author proposed the features of mall fire,security risks and the unfavorable factors of affecting the safety of personnel during the evacuation at mall.The theory of security personnel evacuation and the parameters of personnel evacuation time calculation were studied.A new grid algorithm to predict the mall evacuation time was proposed.Grid algorithm focused on solving the problem of speed in different channels,different regions,different people on evacuation process.Taking a mall evacuation drills as a verification target,the grid algorithm was used to calculate the evacuation time.Compared to the time of evacuation drills,made a evaluation to the algorithm based on the correctness and practicability.Finally,through on-site survey and combined with the actual situation of the mall,predicted the time required for security evacuation and proposed measures to improve the efficiency of evacuation.Hoping to provide a guidance for the mall security management and emergency preparedness.