AN APPROACH TO DESCRIBE BLOCK-BASED SPATIAL CONFIGURATION
URI (for links/citations):http://elib.sfu-kras.ru/handle/2311/111723
(Huimin Ji, Wei You, Wowo Ding: Nanjing University, China, Nanjing, Hankou road 22 e-mail: email@example.com, firstname.lastname@example.org, email@example.com)
Proceedings of the XXV ISUF International Conference “Urban Form and Social Context: from Traditions to Newest Demands” (Krasnoyarsk, July 5–9, 2018)
Urban morphology consists of street/block, plot and building. In other words, the entire form of a city could also be divided into two parts: the street pattern and the block layout, both are the objects of urban planning and design. As a network form, the character of the street pattern can be defined by grid pattern, density, connectivity, integration and depth, while the form of the block layout is usually very difficult to be described clearly. In morphologic studies the block layout could be seen as two patterns: the plot pattern and the building pattern, the first one is described by numbers, sizes and various shapes and the latter one depends on the building types and their arrangements. However, these descriptions present the way of composition rather than the form characteristics of the block layout. Since Roger Trancik put forward “figure-ground theory” for urban analysis and design, at this point, urban space has been formally introduced as a “Form” which is concerned as an important “Place” in urban design purposes. Therefore, this paper tries to combine both urban morphologic theories and urban design theories to search for the proper way of the urban spatial characteristics’ description and definition. Following Kropf’s aspects of plot’s connotation: a composition of buildings and external areas, we can find that the most space for the public is composed of the external areas. Choosing the urban blocks set in Nanjing commercial center area of 22 plots, our research focuses on the external areas to analyze the characteristics of the spatial form instead of focusing on buildings. The spatial visibility, geometric property, sight distance and boundary continuity are used to define the spatial characteristics of the urban place combining each plot. Finally, this paper tries to develop a tool to categorize the areas of spaces, so that the characteristics of the block layout could be understood through those types and their compositions.