Design-based Planning and Mixed Land Use Control:The Evolution Analysis,Characteristic and Enlightenment of Zoning Commercial Land Categories in San Francisco
Since the 1960s,the development of American commerce has led to great changes in urban land layout and spatial form.In the process of guiding and controlling the development of commercial land,San Francisco's zoning Categories has absorbed the concept of urban design and introduced a variety of innovative measures,such as mixed land use districts,special use districts and named districts,so as to realize the combination of zoning and urban design.This paper initially gives a detailed review of the evolution of zoning designations in San Francisco,analyzes its evolution process,and introduces the additions and changes of commercial zoning designation,as well as the research and planning which support it.And then it analyzes the absorption of urban design concept by San Francisco's zoning,and its fine land classification,mixed control and other strategies.Finally,it puts forward some enlightenment for the designation of urban commercial land in China,including introducing the concept of urban design into the legal planning,carrying out the immediate plan of commercial land,and editing the plan with reference to the regulatory plan,and discussing the feasibility of supplementing the classification of planned land.
Zoning CategoriesCommercial Land UseSpecial Use DistrictMixed Land UseUrban Pattern,Design ControlSan Francisco