城市外部空间开放度量化方法研究--以南京市新街口地区为例  

Research on the Quantification of the Openness of Urban External Space:A Case of Xinjiekou in Nanjing

作　　者：杨华武 吴子豪 童滋雨[1] Yang Huawu;Wu Zihao;Tong Ziyu

机构地区：[1]南京大学建筑与城市规划学院

出　　处：《城市建筑》2022年第15期38-43,共6页Urbanism and Architecture

基　　金：国家自然科学基金面上项目“基于微气候效应的夏热冬冷地区城市开放空间布局设计策略研究”(51578277)。

摘　　要：城市外部空间的开放程度对人的视觉感知及城市物理环境有着重要的影响,探究其开放度的量化描述方法,对于认知城市形态及进一步分析其与环境性能的关联性均具有积极的意义。通过计算外部空间不同方向下剖面宽高比的加权平均值(wWHR),研究实现了对复杂城市形态下外部空间开放度的定量描述。研究结果表明,基于剖面宽高比的方法计算结果合理,且相比于传统的天空开阔度(SVF),具有运算简便、操作开放度高的优势,在城市设计和研究中将具有广泛的应用前景。The openness of the urban external space has an important impact on people’s visual perception and the urban physical environment.Exploring the quantitative description method of its openness is of great significance for understanding the urban form and further analyzing its relevance to environmental performance.By calculating the weighted average of width-to-height ratio(wWHR)of different directional sections of external space,the quantification of the openness of urban external space under the complex urban form is realized.The results show that wWHR method is reasonable,and compared with the sky view factor(SVF)method,it has the advantages of simple calculation and high operation openness,and has broad application prospects in urban design and research.

关 键 词：城市形态 城市外部空间 城市剖面 宽高比 开放度 

分 类 号：TU17[建筑科学—建筑理论]