Quantitative Analysis of Spatial Vitality of Urban Built-up Area: A Case Study of Shenzhen

• 作者: XU Yingying
• 来源期刊: 景观研究:英文版
• 学科: 工学
• 关键词: Urban spatial vitality Urban built-up area POI Densi-Graph
• 年，卷（期）: 2020,（4）
• 页码范围: 36-40
• 页数: 5页
• 分类号: TU9

摘要

As an important goal of urban design research,the evaluation of urban spatial vitality has been widely concerned.Taking Shenzhen as an example,the urban built-up area of Shenzhen was identifi ed using improved DENsi-Graph analysis,from the perspective of quantifi cation of urban spatial morphological features.The accessibility of urban streets,degree of construction and architectural form,and degree of functional mixing were quantitatively analyzed through space syntax,space matrix and mixeduse index(MXI),and the spatial vitality of urban built-up area was evaluated.Research results demonstrated that the improved Densi-Graph analysis could better identify the built-up area of Shenzhen,and the overall classifi cation accuracy was 0.810.The analysis results of spatial vitality showed that the urban spatial vitality in Shenzhen urban built-up area was well created.The street accessibility of Shenzhen generally hindered the creation of urban vitality;the spatial matrix value in the north of Shenzhen urban built-up area was lower;and the MXI of most areas within the study area was above the medium.