Occupant evacuation model based on cellular automata in fire  

作　　者：Lizhong Yang Weifeng Fang Rui Huang Zhihua Deng 

机构地区：[1]Univ Sci & Technol China, State Key Lab Fire Sci, Anhua 230026, Peoples R China

出　　处：《Chinese Science Bulletin》2002年第17期1484-1488,共5页

基　　金：This work was supported by the National Natural Science Foundation of China (Grant No. 50006012);the Chinese NKBRSF project (Grant No. 2001CB409600);the project of high-level university establishment.

摘　　要：By applying the rules set in traffic flow and pedestrian flow models, a basic cellular automata model is presented to simulate occupant evacuation in fire. Some extended models are introduced to study the special phenomena of evacuation from the fire room. The key of the models is the introduction of the danger grade which makes the route choice convenient and reasonable. Fire not only influences the emotional and behavioral characteristics of an individual but also affects his physical constitution, which reduces his maximal possible velocity. The models consider these influence factors by applying a set of simple but effective rules. It is needed to emphasize that all rules are established according to the essential phenomenon in fire evacuation, that is, all the occupants would try to move to the safest place as fast as possible. Some simulation examples are also presented to validate the applicability of the models.By applying the rules set in traffic flow and pedestrian flow models, a basic cellular automata model is presented to simulate occupant evacuation in fire. Some extended models are introduced to study the special phenomena of evacuation from the fire room. The key of the models is the introduction of the danger grade which makes the route choice convenient and reasonable. Fire not only influences the emotional and behavioral characteristics of an individual but also affects his physical constitution, which reduces his maximal possible velocity. The models consider these influence factors by applying a set of simple but effective rules. It is needed to emphasize that all rules are established according to the essential phenomenon in fire evacuation, that is, all the occupants would try to move to the safest place as fast as possible. Some simulation examples are also presented to validate the applicability of the models.

关 键 词：CELLULAR AUTOMATA PEDESTRIAN flow FIRE OCCUPANT EVACUATION model. 

分 类 号：O643.2[理学—物理化学]