College of Tourism, Xinjiang University, Urumqi 830049, China.
School of Geography and Planning, Sun Yat-sen University, Guangzhou 510275, China.
Int J Environ Res Public Health. 2021 Mar 30;18(7):3578. doi: 10.3390/ijerph18073578.
As one of the most important criteria for measuring the quality of urban life and the environment, urban vitality has become the focus of urban-related research and related disciplines with an increasing number of advocates for the rapid and harmonious development of urban cities. Urban takeaway can represent urban vitality, but studies have not investigated this in a quantitative manner. Furthermore, current studies rarely focus on or even mention the urban food takeaway vitality generated by the spatial distribution of urban takeaway. This study first calculated the vitality of urban takeaways based on the urban takeaway distribution, building footprint, Open Street Map (OSM) data, and the Rapidly Exploring Random Tree (RRT). Then, the urban vitality was obtained using Tencent-Yichuxing data and night-time light data, followed by a spatial correlation analysis between the urban takeaway vitality and urban vitality. Finally, the results for Beijing, Shanghai, and Guangzhou were compared, and the following conclusions were drawn: (1) there is a significant spatial correlation between the urban takeaway vitality and urban vitality, but the correlation varies in different cities at different times; and (2) even in the same city, different road and building densities have an impact on the correlation. The urban takeaway vitality proposed in this study can be used as a new index to evaluate the urban vitality, which has important theoretical and practical significance for the sustainable development of future urban cities.
作为衡量城市生活质量和环境的重要标准之一，城市活力已成为城市相关研究和相关学科的焦点，越来越多的人倡导城市的快速和谐发展。城市外卖可以代表城市活力，但目前的研究还没有以定量的方式对此进行研究。此外，目前的研究很少关注甚至提及城市外卖的空间分布所产生的城市外卖活力。本研究首先基于城市外卖分布、建筑足迹、Open Street Map（OSM）数据和快速随机树（RRT）计算了城市外卖的活力。然后，使用腾讯-易出行数据和夜间灯光数据获得城市活力，接着对城市外卖活力与城市活力之间的空间相关性进行分析。最后，对北京、上海和广州进行了比较，得出以下结论：（1）城市外卖活力与城市活力之间存在显著的空间相关性，但在不同时间、不同城市，相关性存在差异；（2）即使在同一城市，不同的道路和建筑密度对相关性也有影响。本研究提出的城市外卖活力可作为评价城市活力的新指标，对未来城市的可持续发展具有重要的理论和实际意义。
