In order to look into people’s behavior in crowds during emergencies, we conducted an evacuation drill experiment in an office building of a university without early notification when the experiment subjects were working as usual. The statistical features of their evacuation decision-making and exit choices related behaviors were analyzed. Two interesting responses were found in this experiment: 1. People showed herding tendency when deciding to evacuate. 2. People would like to choose the exit that they frequently used to escape because of their daily habits, which is not mentioned in or inconsistent with the most previous research findings. Based on the above findings, an extended cost potential field model considering herd effect and exit familiarity was put forward. The corresponding simulation results showed that the modified model could better describe people’s behavior during emergencies.

为了调查紧急情况下人群的行为，我们在大学的办公楼进行了疏散演习实验，实验对象照常工作时没有提前通知。分析了他们的疏散决策和退出选择相关行为的统计特征。在该实验中发现了两个有趣的响应：1.人们在决定撤离时表现出放牧倾向。2.人们希望选择由于自己的日常习惯而经常逃生的出口，这与大多数最新研究成果没有提及或矛盾。基于以上发现，提出了一种考虑羊群效应和出口熟悉度的扩展成本潜力田间模型。