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STUDY ON THE SPATIAL CHARACTERISTICS OF SUPPLY AND DEMAND OF URBAN AMENITIES BASED ON NETWORK BIG DATA: A CASE STUDY OF CENTRAL URBAN AREA OF NANJING |
SUN Hong-hu1,2, ZHEN Feng1,2, LUOSANG Zha-xi1,2 |
1. School of Architecture and Urban Planning, Nanjing University, Nanjing 210093, China;
2. Provincial Enginnering Laboratory of Smart City Design Simulation & Visualization, Jiangsu, Nanjing University, Nanjing 210093, China |
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Abstract At present, the rate of urbanization in China has reached 58.52%, under the background of new urbanization strategy, urban development has entered the stage of intensive urbanization with emphasis on the quality improvement and importance of putting people first. And the main contradiction of our society has also been transformed into the contradiction between the growing demand for better life and the unbalanced and inadequately development. Therefore, in order to improve the attraction, meet the growing demand for quality of life, promote the social justice, the strategy of urban development based on amenity is of great significance and value to the transformation of urbanization in a new stage of urbanization in China. Focus on improving the quality of life of urban residents, taking the amenity as the research content, the amenity measurement system is built around the two dimensions of supply and demand. And then taking the central urban area of Nanjing as a case, the spatial characteristics of the supply and demand of urban amenities are analyzed based on network big data with multi-source. The results show that:1) The supply and demand relationship of urban amenities are diverse and the spatial distribution is similar; 2) Most of the amenity supply in main urban area is less than the demand, the amenity in sub-urban area is on the basis of the low supply and demand balance, and less supply than demand; 3) the level of convenience supply and demand is not high in the central urban area.
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Received: 08 January 2018
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