Three dimensional GIS-based preliminary study on urban disaster emergency system:taking Beijing Normal University area at Beitaipingzhuang as an example

Along with development of GIS,spatial database,visualization tools and virtual reality applications in recent decades,the 3D GIS technology has been widely used in urban planning,urban design,public security and civil engineering and architecture projects.And it also provides a useful tool for disaster reduction and emergency response,especially for the emergency management in urban areas.GIS based 3D real-time simulation system is helpful not only to management and analysis of disaster spatial data,but also to providing reliable tool for disaster reduction and emergency management.In this paper,we also outline the structure and data model of a 3D GIS-based disaster analysis and response system.And taking Beitaipingzhuang campus of Beijing Normal University as a case study,the urban emergency management process was simulated.The result shows that the 3D GIS-based emergency response system can provide reliable tool for the disaster reduction and emergency response.