Green space is the main public space in the city and plays an important role in urban environmental health and residents’physical and mental health.The outbreak of COVID-19 has put forward new requirements for urban ...Green space is the main public space in the city and plays an important role in urban environmental health and residents’physical and mental health.The outbreak of COVID-19 has put forward new requirements for urban green space construction in many aspects.Based on the population vitality data of comprehensive parks in the central urban area of Beijing,this paper evaluated urban comprehensive parks in the context of COVID-19 epidemic to reveal the changing process of their use and visit characteristics,and proposed suggestions and strategies to deal with the epidemic in comprehensive parks in the central urban area of Beijing.展开更多
This study applies multi-source datasets(i.e.,Baidu Heat Map data,points of interest(POIs)data,and floor area and land use data)and geographically and temporally weighted regression(GTWR)models to elaborate the spatio...This study applies multi-source datasets(i.e.,Baidu Heat Map data,points of interest(POIs)data,and floor area and land use data)and geographically and temporally weighted regression(GTWR)models to elaborate the spatiotemporal relationships between the built environment and urban vibrancy on both weekdays and weekends,using Guangzhou City as a case.First,we verified the spatially and temporally nonstationary nature of the built environment correlates,which have been largely ignored in previous studies based on local regression techniques.The spatially and temporally heterogeneous effects of the built environment on urban vibrancy are then presented and visualized,based on the GTWR results.We found that the elasticity of location(i.e.,distance),land use mix(i.e.,diversity),building intensity and numbers of POIs with various functions(i.e.,density)are different across time(2-h intervals within a day)and space(grids),due to people’s everyday lifestyle,time-space constraints,and geographical context(e.g.,spatial structure).The findings highlight the importance of a better understanding of the local geography on the spatiotemporal relationships for urban planners and local governments so as to put forward decision-making support for fostering and maintaining urban vibrancy.展开更多
通过对2018年一周内(3月2631日)上海市中心城区百度热力图进行分时段统计分析发现:同一规划级别的城市中心在城市空间热度上存在着巨大差异,这与上海市现行城市规划中强化城市中央活动区、城市副中心以及地区中心的建设目标存在一定差...通过对2018年一周内(3月2631日)上海市中心城区百度热力图进行分时段统计分析发现:同一规划级别的城市中心在城市空间热度上存在着巨大差异,这与上海市现行城市规划中强化城市中央活动区、城市副中心以及地区中心的建设目标存在一定差距。为缩小同级别城市中心的空间热度差异,以提升空间热度为导向,选取空间热度较低的代表性地区上海市浦东新区花木-龙阳路副中心,以公共设施类POI(Point of Interest)核密度分布为基础、道路与交通设施类POI核密度分布为补充,进行绿道选线与优化结果分析。同时,根据人群空间热度,从绿地类型、使用时间2个维度,以及主轴线规划、副轴线规划、绿地斑块规划和夜间灯光设计4个方面提出花木-龙阳路副中心区绿道优化策略,在实现区域绿道覆盖率目标的基础上,通过绿道构建提升区域内部的连通性,进而提升空间热度。展开更多
基金National Natural Science Foundation of China(51708004)Construction of Teaching Staff of Famous Young Teachers in Beijing(108051360023XN261)North China University of Technology YuYou Talent Training Program(215051360020XN160/009).
文摘Green space is the main public space in the city and plays an important role in urban environmental health and residents’physical and mental health.The outbreak of COVID-19 has put forward new requirements for urban green space construction in many aspects.Based on the population vitality data of comprehensive parks in the central urban area of Beijing,this paper evaluated urban comprehensive parks in the context of COVID-19 epidemic to reveal the changing process of their use and visit characteristics,and proposed suggestions and strategies to deal with the epidemic in comprehensive parks in the central urban area of Beijing.
基金Under the auspices of National Natural Science Foundation of China(No.41901191,41930646)Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai)(No.311020017)。
文摘This study applies multi-source datasets(i.e.,Baidu Heat Map data,points of interest(POIs)data,and floor area and land use data)and geographically and temporally weighted regression(GTWR)models to elaborate the spatiotemporal relationships between the built environment and urban vibrancy on both weekdays and weekends,using Guangzhou City as a case.First,we verified the spatially and temporally nonstationary nature of the built environment correlates,which have been largely ignored in previous studies based on local regression techniques.The spatially and temporally heterogeneous effects of the built environment on urban vibrancy are then presented and visualized,based on the GTWR results.We found that the elasticity of location(i.e.,distance),land use mix(i.e.,diversity),building intensity and numbers of POIs with various functions(i.e.,density)are different across time(2-h intervals within a day)and space(grids),due to people’s everyday lifestyle,time-space constraints,and geographical context(e.g.,spatial structure).The findings highlight the importance of a better understanding of the local geography on the spatiotemporal relationships for urban planners and local governments so as to put forward decision-making support for fostering and maintaining urban vibrancy.
文摘通过对2018年一周内(3月2631日)上海市中心城区百度热力图进行分时段统计分析发现:同一规划级别的城市中心在城市空间热度上存在着巨大差异,这与上海市现行城市规划中强化城市中央活动区、城市副中心以及地区中心的建设目标存在一定差距。为缩小同级别城市中心的空间热度差异,以提升空间热度为导向,选取空间热度较低的代表性地区上海市浦东新区花木-龙阳路副中心,以公共设施类POI(Point of Interest)核密度分布为基础、道路与交通设施类POI核密度分布为补充,进行绿道选线与优化结果分析。同时,根据人群空间热度,从绿地类型、使用时间2个维度,以及主轴线规划、副轴线规划、绿地斑块规划和夜间灯光设计4个方面提出花木-龙阳路副中心区绿道优化策略,在实现区域绿道覆盖率目标的基础上,通过绿道构建提升区域内部的连通性,进而提升空间热度。
