标题： 预疏散行为中的二元决策过程 显示英文标题

标题： Binary Decision Process in Pre-Evacuation Behavior

摘要： 在人群疏散中，决定性地向安全地点移动之前的时段被定义为预疏散阶段，它对安全疏散所需的总时间有重要影响。 这一过程主要指对情境的意识和对外部压力源的反应，例如火灾警报。 由于人类认知过程的复杂性，使用仿真来研究这个重要的时间间隔。 在本文中，一个二元决策过程被提出，以模拟给定社会情境下许多疏散人员的预疏散时间。 该模型结合了经典的意见动力学与二元相变，以描述群体预疏散时间如何从个体互动中产生。 该模型的参数在社会心理学背景下对人类因素研究具有定量意义，例如个体是否固执或开放，或者个体之间存在什么样的社会拓扑结构，以及这种结构在将个体聚合到社会群体中起什么作用。 该建模框架还描述了平面空间中许多疏散人员的集体运动， resulting 的多智能体系统部分类似于Vicsek模型，在社会情境中探索复杂的群体行为是有意义的。 显示英文摘要

摘要： In crowd evacuation the time interval before decisive movement towards a safe place is defined as the pre-evacuation phase, and it has crucial impact on the total time required for safe egress. This process mainly refers to situation awareness and response to an external stressors, e.g., fire alarm. Due to the complexity of human cognitive process, simulation is used to study this important time interval. In this paper a binary decision process is formulated to simulate pre-evacuation time of many evacuees in a given social context. The model combines classic opinion dynamics with binary phase transition to describe how group pre-evacuation time emerges from individual interaction. The model parameters are quantitatively meaningful to human factors research within socio-psychological background, e.g., whether an individual is stubborn or open-minded, or what kind of the social topology exists among the individuals and how it matters in aggregating individuals into social groups. The modeling framework also describes collective motion of many evacuees in a planar space, and the resulting multi-agent system is partly similar to Vicsek model, and it is meaningful to explore complex crowd behavior in social context.