Chemical industry park plays an important role in optimizing the allocation of resources, but an emergency may make a great deal of personnel casualty and property loss. Many casualties are not the result of accidents but are caused by extreme behavior because of the non-adaptive psychology of the evacuees. Panic is one of the non-adaptive psychological behaviors during an evacuation, which is influenced by a variety of factors. Based on the consideration of the disaster environment and the evolution of crowd emotion, a system dynamics model of panic spread is established by using Anylogic software, and simulation experiments are carried out for different disaster severity, visibility, and groups. The results show that the number of people with severe panic increase when visibility decreases or disaster diffuses. Besides, the appropriate proportion of groups can effectively reduce the cooling time of crowd and ease the fears. However, continue to increase the number of groups has no significant effect on the panic control. This work can provide some reasonable guidance for regional emergency evacuation in chemical park.

化学工业园区在优化资源配置方面发挥着重要作用，但紧急情况可能会造成大量人员伤亡和财产损失。许多人员伤亡不是事故造成的，而是由于疏散人员的不适应心理而导致的极端行为。恐慌是疏散过程中的非适应性心理行为之一，受多种因素影响。在考虑灾害环境和人群情绪变化的基础上，利用Anylogic软件建立了恐慌蔓延的系统动力学模型，并针对不同的灾害严重程度，能见度和人群进行了仿真实验。结果表明，当能见度降低或灾难扩散时，严重恐慌的人数会增加。除了，适当比例的人群可以有效地减少人群的降温时间，减轻恐惧感。但是，继续增加组数对恐慌控制没有明显影响。这项工作可以为化学园区的区域紧急疏散提供一些合理的指导。