Study On The Relationship Between Urban Spatial Configuration Within Commercial Blocks And The Sky View Factor

Previous research has established a clear relationship between the sky view factor value and the urban heat island effect, so it is possible to release the urban heat island effect through urban planning and design based on the reasonable range of sky view factor. However, there are rarely proper tools and analysis methods for relative studies. Thus, this paper tried to create new computer-based quantified mapping methods to describe the spatial configuration within commercial blocks, research the relationship between the sky view factor and urban configuration and then reclassify the urban samples based on the analysis platform. The significance of this paper is the construction of a proper tool for connecting urban spatial configuration and sky view factor, and to provide possibilities for further analysis and exploration on urban configurations which can optimize the sky view factor.In this paper, we firstly established a platform to connect the digital mapping of urban configuration and the sky view factor and proved that the SVF expand curve could be used as a proper tool to describe the urban form and sky view factor. Then a testing model was built to characterize the spatial configurations based on twenty extant mix-used blocks in Nanjing. Through a series of experiments based on the testing model, we obtained the relationship between SVF value and abstractive urban configuration. Thirdly, in order to discuss the spatial configurations in reality, we analyzed and classified the real urban configuration samples by means of space syntax, and reclassified the urban samples according to the features of SVF expand curves.