MAPPING THE RELATIONSHIP BETWEEN SITE CODING AND STREET SPATIAL CONFIGURATION: CASE STUDY IN NANJING, CHINA

Abstract

Street spatial configuration is often regarded as the urban design object, as one of the characteristics of urban form, which is shaped by the buildings along the street. As is known to all, the positions of buildings are limited to their plot with site coding, building type and security rules, therefore, for urban designer it is important to know the correlation between street spatial configuration and those urban regularities. Based upon numerous urban rules referring to the street, our research has tried to study the longitudinal relationship between site coding, building type, various city rules and street spatial configuration, so mapping all kinds of rules becomes a necessary process and method. In order to do so, we have built a 3D mapping model consisting of all species and all the positions of plots and reflecting all the impacts of urban spatial regulations on plots and their buildings. Three groups of information data are mapped on the model: (1) urban planning, including land use and traffic network; (2) the plot size, shape, position and building types; (3) urban environment state and security rules. According to the mapping results, we tried to generate street spatial configuration model. The research shows clearly the importance of the urban regulations to the street spatial configuration and the problems of those rules while building urban form. Through statistical analysis our study shows not only the limitation of street design, but also the potential of the urban design and urban codes. Finally, this paper is focused on discussing how the urban coding acts in morphological process, especially in spatial configuration.