A Comparative Study of Urban Spatial Characteristics of the Capitals of Tang and Song Dynasties Based on Space Syntax

Space syntax has been widely used in studies with historical components to developing a common analytical language for the comparative study of urban morphology across time and space by visual diagrams. This paper uses space syntax to analyse the inner and outer city parts of the daily life of residents in the capital cities of two dynasties, Tang and Song, to reveal the impact of changes in urban planning on the overall spatial structure of the city, the structure of commercial space, and the role of urban squares in the two dynasties under centralised rule. Based on the quantitative analysis, the results show significant differences between the Tang and Song dynasties in all three aspects of comparison. The changes in the Tang and Song dynasties’ capital cities result from the interaction between the materiality of the ancient Chinese capital city form and the spatial function of the city, and the analysis of space syntax is useful for interpreting their relevance.