探讨城市户外空间健身活力的建成环境影响机制对促进全民健身具有重要意义.论文以武汉主城区为例,基于Keep健身轨迹数据探究户外空间健身活力强度,采用多层线性模型(hierarchical linear model,HLM)与多尺度地理加权回归模型(multiscale geographically weighted regression,MGWR)分析建成环境对健身活力的影响及其异质性.结果表明:①不同功能类型区健身活力差异巨大,绿地主导型空间健身活力最大,且运动场所密度、水系空间指数对此类空间促进作用更加明显;居住主导型空间健身活力也较大,且支路密度、容积率对该类空间正向影响更强;工业主导型最弱,POI混合度、地价对此类空间正向效果明显.②不同空间区位健身活力差异巨大,总体呈现"核心—边缘"结构,组团集聚特征明显,且不同区位受POI混合度、道路密度、建筑密度、绿化率影响的差异较大.研究结果显示城市建成环境对户外健身活力的多重影响,可为面向健身友好的城市功能及形态优化提供参考.
Influence of the built environment on outdoor space fitness vitality and its heterogeneity:A case study of the Wuhan urban area
Exploring the mechanism of impact of the built environment on fitness vitality in urban outdoor spaces is of great significance for promoting national fitness.Taking the Wuhan urban area as an example,this study investigated the intensity of fitness vitality in outdoor spaces based on Keep fitness trajectory data.The hierarchical linear modeling(HLM)and multiscale geographically weighted regression(MGWR)models were employed to analyze the influence of the built environment on fitness vitality and its spatial variations.The results reveal the following:1)Significant differences exist in fitness vitality among different functional areas.Green-dominated spaces exhibit the highest fitness vitality,with density of sports facilities and water area coefficient playing a more pronounced role in promoting fitness in such areas.Residential-dominated spaces also demonstrate considerable fitness vitality,with more prominent positive effects from street density and floor area ratio.In contrast,industrial-dominated spaces exhibit the weakest fitness vitality,while the degree of point of interest(POI)mixture and land prices show significant positive effects in such areas.2)There are substantial disparities in fitness vitality among different locations,generally exhibiting a core-periphery structure with evident clustering characteristics.Moreover,the influences of POI mixture,road density,building density,and green space ratio vary significantly across different locations.The research findings demonstrate the multifaceted impact of the urban built environment on outdoor space fitness vitality and provide valuable planning recommendations for optimizing city functionality and form to create fitness-friendly environments.
built environmentfitness vitalitymechanism of influenceheterogeneityWuhan City
万方数据
