基于15min生活圈的公园步行可达性分析——以南京市月牙湖公园为例  

Assessment of Pedestrian Accessibility to Urban Parks Within the 15 Minute City Circle:A Case Study of Yueya Lake Park in Nanjing

作　　者：蔡珣 王健慧 董一凡 徐振[1] CAI Xun;WANG Jianhui;DONG Yifan;XU Zhen(College of Landscape Architecture,Nanjing Forestry University,Nanjing,Jiangsu,China,210037;Shenzhen L&A Design Holding Limited,Shenzhen,Guangdong,China,518000)

机构地区：[1]南京林业大学风景园林学院,南京210037 [2]深圳奥雅设计股份有限公司,深圳518000

出　　处：《园林》2024年第8期81-91,共11页Landscape Architecture Academic Journal

基　　金：国家自然科学基金面上项目“基于健康影响评价的城市开放空间中体力活动多维测度、机理分析与规划设计响应”(编号:52078254)。

摘　　要：城市绿地有助于改善居民健康、提升社会福祉。在15min生活圈内,促进人们前往公园绿地对提高城市绿色基础设施使用率、推动健康城市建设具有积极意义。公园绿地周边的步行连通性与步行环境质量是影响公园到访率的重要因素。以南京市月牙湖公园为研究对象,借助推荐步行路径与街景图像,采用空间分析与图像语义分割技术,确定月牙湖公园的服务范围,分析迂回值、转弯次数、绿视率等指标,评估公园步行可达性,结果发现自然地形、文物古迹、封闭社区等具有重要影响。步行环境因街道绿化匮乏、围合要素压迫、设施侵占等而有待改善。提出柔化公园边界、开放社区、实践城市绿街模式等策略,为公园绿地至居民区的路径规划与建成环境设计提供参考。Urban green space helps to improve residents’health and enhance social well-being.Encouraging the populace to engage with park green spaces within the 15 min life circle positively correlates with the optimal functioning of urban green infrastructure and advancements in constructing a health-conscious cityscape.The walkability and quality of the pedestrian environment adjacent to park green spaces are signifi cant factors affecting the frequency of park visits.The paper focuses on Yueya Lake Park in Nanjing,utilizing recommended walking paths and street view images,adopting spatial analysis and image semantic segmentation.After delineating the service area,the evaluation of walking accessibility is conducted by analyzing several met-rics,including the Pedestrian Route Directness,the number of turns,and the Green View Index.The results indicate that natural topography,cultural relics,and gated communities have signifi cant impacts.The pedestrian environment requires improvement due to insuffi cient greening,oppressive enclosing elements,and facility encroachment.This paper proposes strategies such as softening park boundaries,opening communities,and implementing urban green street models,providing references for the path planning and built environment design from parks to residential areas.

关 键 词：生活圈 步行环境 步行范围 可达性 街景图像 

分 类 号：TU986[建筑科学—城市规划与设计]