一种基于模糊理论的人员疏散模型

A fuzzy modeling approach for simulating pedestrian evacuation

采用一种模糊建模方法得出一个针对行人疏散的数学模型,利用一些简单的物理学和心理学中的语言值规则来定性描述每个人的行为,并通过模糊建模方法转化为定量的数学模型。该模型的疏散仿真结果与观察到的人员疏散现象是一致的。结果表明,不同的模糊参数设置对人员的疏散时间和动力学特征有着显著的影响。

Pedestrian evacuation simulation has many important applications. This paper uses a fuzzy modeling approach to derive a mathematical model for the pedestrian evacuation. In this fuzzy model for the pedestrian evacuation, each pedestrian＇s behavior is linguistically described by some simple qualitative physical and psychological laws. These qualitative lows are then transformed into a quantitative mathematics model using a fuzzy modeling approach. The evacuation simulation results based on the proposed fuzzy model are consistent with the observed phenomena for the pedestrian evacuation. Moreover, the simulations show that the parameters involved in the proposed fuzzy model have prominent influences on the evacuation time and dynamical features of pedestrian evacuation.