Research On The Optimization Of Urban Commercial Space Structure Under The Background Of Major Cities Cluster-style Development

Regionalization and Metropolitan Area of the central region of China's major cities, are different from the low-density metropolitan areas of the western city and the diffusion regionalization which under the dense city environments of Coastal cities in China. Due to the ecological environment, land resources and the constraints of the level of motorization, China's urban construction has seen an obvious high "compactness", most of the urban space is relying on expansion of transport corridors to the outlying areas, away from the central city of lots form a " cluster-like group, "an extension form. Wuhan and Changsha, due to the Great river the Lakes, hilly segmentation, as well as lakes, wetlands and ecological matrix effects cluster-type features of spatial development significantly. In the new General Regulations of Wuhan and Changsha, the metropolitan areas which outside main urban areas all use of "new city clusters", "District + Development Corridor" and other forms of spatial organization. The big cities cluster type development trend in our country has a certain particularity and representation.The thesis'study based on the background of major cities cluster-style development, explore the general rule that cluster-style urban commercial space layout of the central region which under the conditions of poly-based city regional, proposed the urban commercial space structure optimization models and strategies which in the context of large cities'cluster-style development, establish a type of commercial space structure model which suitable for the particular structure of cluster-style urban, enrich the structure theory, improve the layout of commercial space theory, support for the overall development and layout optimization of urban space.The thesis is divided into four parts, starting with the elaboration and definition of the researching background and related concepts, summarizes the relevant theoretical research carried out at home and abroad, and takes which as the research base of the thesis; then takes Wuhan City as the demonstration to analyse its commercial space structure synchronicly and diachronicly. points out its problems; then adoptes the analysis of cluster cities commercial space case at home and abroad, and also takes reference of the simulation of commercial space structural model in every situation, to obtain a reasonable model of the structure of cluster city commercial space , basing on the study and actual prediction of the case, combines the objective situation of cluster city commercial space development to Explore the commercial space structure optimization mode in the context of the city cluster-style development. Finally, basing on the analysis above, the thesis is from the regionalization of business services, good nature of commercial facilities, and the Collaborative of transportation and commercial distribution to put forward the corresponding optimization strategy of commercial space structure.