YE Yu, CHEN Changyu, GUO Yuhan, LIU Yuxuan

Keywords： Quantitative Urban Morphology; Plot Morphological Characteristic; Living Convenience; Multi-source Urban Data; Urban Space Quality

Abstract：

As urbanization advances into the new stage oriented by quality and humanism, the living convenience has gradually become an important indicator

to shape the quality of the city. Research has indicated that the division of plots significantly impacts factors such as transportation connectivity and accessibility to service facilities, which are crucial for living convenience. However, the impact of the division of plots on the living convenience still needs to be further explored. In response to this situation, this paper integrates multi-source urban data and quantitative urban morphology methods to explore the impact of morphological characteristics of various plots on the living convenience on the basis of quantitative analysis of living convenience. Considering the demands of New Town renewal, this study takes Songjiang New Town and Jiading New Town as empirical cases. By controlling key variables such as population density and road network accessibility, machine learning-based correlation analysis methods was used to further explore the relationship between plot morphology features and living convenience. The statistical analysis not only shows that dense road network system with small building blocks and appropriate floor area ratio are conducive to the improvement of living convenience, but also indicates that planar morphology of plots plays a significant role. To address the issue of insufficient detail in the division of plots in new towns, this study suggests controlling the area of land-use unit to within 2 hectares and the block area to between 4 and 4.8 hectares during development, subdividing blocks into 4-5 land-use units. Additionally, controlling the orientation of land-use units and the floor area ratio (FAR) of buildings has a positive impact on the living convenience. It is recommended that these factors be further emphasized in new town planning. The above-mentioned analysis of the morphological efficiency of plots from the perspective of quantitative urban morphology can provide targeted suggestions for the preparation of control regulations and urban renewal.

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