Research On The Influence Mechanism Of Integrated Density On The Quality Of Public Space In Urban Residential Areas

Rapid urbanization has increased the density of the city and a large number of urban settlements have been built.But the extensive pattern of index-orientated management and control results in the homoplasy of urban morphology and the poor-quality of urban residential areas' public space.With the improvement of living standard and the change of living concept,the pursuits of the urban residents have shifted from the quantity of residential area to the quality of living space.Therefore,the quality of public space in community is being increasingly paid attention.On the basis of reference to existing research and analysis of the integrated density's concepts and corresponding indexes and ratios,this study choose seven density's indexes which are associated with the physical quality of public space.Based on the empirical research of existing settlements in Nanjing by quantitative analysis and qualitative judgment,the study explores how integrated density's indexes and ratios consist and make influence on the spatial form and the quality of public space in urban settlements and the correlation mechanism between them.The physical quality of public space is quantitatively evaluated from three perspectives: the characteristics of spatial form are analyzed by the type diagram,the level of space supply is compared by quantitative analysis,and the evaluation of layout efficiency is completed by using space syntax.Finally,according to the objective evaluation criteria,the ranking and influence mechanism of different density indexes are obtained.Combined with some issues in the construction of urban residential areas in China,the misunderstandings in the control of residential area index and concept of planning and design are discussed.The final achievements are expected to provide theoretical and practical reference for the renewal and new design of urban communities.