Rediscovering the amenity value of urban landscapes in the mountainous areas with high-rise buildings from the perspective of 3D vertical urban systems

《Rediscovering the amenity value of urban landscapes in the mountainous areas with high-rise buildings from the perspective of 3D vertical urban systems》

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关键字: Amenity value;3D city models;House price;Urban landscape;Vertical urbanization

作者单位: School of Management Science and Real Estate, Chongqing University, Chongqing, 400045, China;School of Management Science and Real Estate, Chongqing University, Chongqing, 400045, China

摘要: Most of the literature has analyzed the accessibility value of landscapes based on flat terrain. However, the spatial interactions between the built and natural environments have changed with the transformation of urbanization from horizontal to vertical development. Therefore, this paper aims to redefine the amenity value of urban landscapes in terms of accessibility and visibility, considering topographical undulations and building occlusions, and to further analyze the spatial and temporal variances and spillovers of the value of urban landscapes in a three-dimensional system. Taking the famous ‘Mountain City’ Chongqing as the case study, the findings show that the topography of the mountain largely reduces walking accessibility, resulting in the accessibility of the mountain being less attractive in the three dimensional system. The visibility of rivers and parks is affected by house occlusion and a wavy terrain, and the landscape visibility of individual houses lacks a spatial spillover effect. Theoretically, the research contributes a new vertical perspective to the value of urban landscapes within the concept of the harmonious coexistence of humans and nature and empirically provides recommendations for improving functional facilities and optimizing spatial layouts to highlight the unique charm of a three dimensional city.