摘要
以城市防灾空间中最基本的单元——社区空间为研究对象,对其应急疏散能力评价方法进行探讨。建立了基于现状空间分析的应急疏散能力评价模型,模型由应急疏散时间半径与应急疏散容量半径两个维度及应急疏散距离、道路有效宽度、道路集成度、应急疏散场所容量、社区人口密度5个因素构成。最后,通过GIS中的服务区分析及空间句法分析等技术,将模型应用于北京市交道口社区,找到交道口社区中应急疏散能力较弱的区域,为社区应急疏散空间的优化提供了依据。
The paper established a model to evaluate the evacuation capacity of urban cornmumty space. I he model had two di- mensions:the time radius and the volume radius of emergency evacuation. The time radius can be evaluated by the evacuation distance, the valid width and integration of evacuation roads. The volume radius can be evaluated by the capacity of emergency shelter and the population density in the community. Then the paper took Jiaodaokou community in Beijing as an example to ap- ply the model, using the service area analysis and space syntax function in GIS, and found the weak points of evacuation in Jiaod- aokou community.
出处
《地理与地理信息科学》
CSCD
北大核心
2015年第1期120-124,2,共5页
Geography and Geo-Information Science
基金
国家自然科学基金项目"中国城市空间增长的低碳化形态模式研究"(41171130)
关键词
城市社区空间
应急疏散能力
评价模型
交道口社区
urban community
emergency evacuation capacity
evaluation model;Jiaodaokou community