三维视角下高密度街区开放空间供需匹配研究——以广州珠江新城为例  

RESEARCH ON SUPPLY-DEMAND MATCH OF OPEN SPACE IN HIGH-DENSITY BLOCK FROM A THREE-DIMENSIONAL PERSPECTIVE: TAKING GUANGZHOU ZHUJIANG NEW TOWN AS AN EXAMPLE

作　　者：江海燕[1] 梁挚呈 肖希 吴玲玲[1] JIANG Haiyan;LIANG Zhicheng;XIAO Xi;WU Lingling

机构地区：[1]广东工业大学建筑与城市规划学院

出　　处：《城市规划》2022年第11期42-51,共10页City Planning Review

基　　金：国家自然科学基金面上项目:三维视角下建成区附属开放空间供需匹配测度与共享机制研究(52278053);教育部人文社科基金一般项目:线上-线下社交对城市开放空间活力格局的影响机制与优化路径研究(21YJAZH032);广东省基础与应用基础研究基金面上项目:基于三维可达性的高密度街区附属绿地供需潜力识别与公共化对策研究(2021A1515010894)。

摘　　要：在中心城区普遍存在的高流动、高密度、高强度背景下,存量时期通过释放部分附属绿地公共性、优化社区级以下开放空间配置,能够解决公共需求增加与可分配资源不足的矛盾。其中,微观尺度精准的供需评估和潜力识别是实现配置优化的前提。论文以广州珠江新城核心区为例,通过建立街区三维模型以及包含城市公园、广场、建筑底层附属绿地、空中花园和廊道等在内的开放空间数据库,采用3D-GIS可达性分析方法,分别计算公有开放空间稀缺度、附属开放空间充足度、公共—附属开放空间互补度等,比较街区不同类型开放空间以及不同高度建筑的供给差异,识别开放空间供给溢出区、平衡区和不足区,并提出基于附属绿地率转移的联合公共化、空中公共化和就地公共化的思路。研究能够释放附属绿地的活力,加大不同类型高密度城区社区级以下公共开放空间的配置密度,建构水平和垂直相结合的开放空间系统,促进城市空间规划设计向精准化转变。Under the background of high mobility,high density,high intensity,and the stock-based development,open space system can accurately solve the problem of supply-demand mismatch at the community level by releasing the publicness of some attached green space.Among them,accurate supply and demand assessment and potential identification on a micro scale are the prerequisites for realizing configuration optimization.Taking the core area of Zhujiang New Town in Guangzhou as an example,the paper firstly uses a 3D-GIS accessibility analysis method based on establishing a three-dimensional model of the block and an open space database including urban parks,squares,attached green space at the ground floor of buildings,sky gardens,corridors,etc.,and then calculates the degree of scarcity of public open space,adequacy of attached open space,complementarity of public and attached open space.It also compares the supply differences based on different types of open space and different heights of buildings in the block,identifies overflow areas,balanced areas,and insufficient areas of open space supply,thereby putting forwards the idea of joint publicization,sky space publicization,and in situ publicization based on the transfer of attached green space rate.This research can help release the publicness and vitality of the attached green space,increase the density of public open space in different types of high-density urban areas,build an open space system that combines horizontal and vertical dimensions,and promote urban space management ability precisely.

关 键 词：开放空间 3D空间分析 供需匹配 高密度街区 

分 类 号：TU984.113[建筑科学—城市规划与设计]