基于GIS的火灾安全疏散模拟

为综合描述场景的关键要素,加强模拟的真实性,基于GIS技术,针对火灾场景下的人员疏散提出了模拟模型。借助GIS缓冲区分析与拓扑分析等功能,实现了初始化场景解析、实时空间分析等流程,可以对任意模拟时间步火灾、人员、建筑环境等要素的分布特征信息进行提取。为人员模型制定了基于空间信息的疏散策略,模拟人员的环境感知能力与分析判断能力。设计并实现了GIS模型至FDS模型的转换接口,维护了GIS模型与FDS模型的一致性,提高了建模效率。在模型基础上,研制了人员疏散模拟系统。应用实例说明了模型对环境各要素的描述能力及对疏散场景的模拟能力。

GIS-based evacuation simulation for fire safety

To comprehensively represent the key variables at scenes and improve the authenticity of the simulation,this paper proposes a GIS-based simulation model for the occupant evacuation in fire.Utilizing the function of GIS,such as buffer analysis and topological analysis,the processes of scene analysis for initialization and real-time spatial analysis were realized to capture the information of the features including fire,occupant and geometry at any time step.The evacuation strategy based on spatial informatio...