Vitality assessment of mountainous cities based on multi-source data: A case of Chongqing, China

Authors: Yujia Ming*, Chongqing University, Yong Liu, Associate Professor
Topics: China
Keywords: urban vitality,heat map,point of interest, perception of urban environment
Session Type: Paper
Day: 4/10/2020
Start / End Time: 8:00 AM / 9:15 AM
Room: Mineral Hall B/C, Hyatt Regency, Third Floor
Presentation File: No File Uploaded

With the rapid urbanization in China, the emergence of urban diseases has led to the decline of urban quality and urban vitality. Urban vitality provides a new perspective for the study of urban issues. The use of big data provides an accurate and efficient means for the study of urban vitality. Based on the dimensions of population heat map and POI distribution, this paper quantitatively evaluates the urban vitality in the main city of Chongqing, and validates the vitality based on the score of street view perception. The results show that the areas with high urban vitality are mainly located in the inner ring of Chongqing, especially in the main center of Jiefangbei and sub-centers, as Shapingba, Yangjiaping, Guanyinqiao and Nanping. The areas with high urban vitality correspond to the sub-centers of Chayuan and Xiyong outside the inner ring. This result is also consistent with the score of street view perception. The study confirms that the evaluation of urban vitality based on big data makes up for the deficiency of traditional qualitative analysis method and can help policy making of spatial planning.

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