Research on the Equity of Urban Green Park Space Layout Based on Ga2SFCA Optimization Method—Taking the Core Area of Beijing as an Example
Research on the Equity of Urban Green Park Space Layout Based on Ga2SFCA Optimization Method—Taking the Core Area of Beijing as an Example
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基于Ga2SFCA优化方法的城市绿地公园空间布局公平性研究——以北京市核心区为例
DOI：
10.3390/land11081323
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发表时间：
2022-08
期刊：
影响因子：
3.9
通讯作者：
Ming-Juan Zhang
中科院分区：
文献类型：
--
作者：
Yilun Cao;Yuhan Guo;Ming-Juan Zhang
(1)背景：城市绿地公园空间布局的公平性问题是城市公共资源配置的一个重要维度。(2)目的：从定量和空间角度分析北京市核心区帕克兰分布的公平性。通过测量车辆和行人交通模式，研究确定了低水平的绿色空间供应的地区，并提供优化策略。希望本研究能为北京市核心区未来的绿色空间建设提供依据。(3)研究方法：采用高斯两步浮动集水区法对北京市核心区绿地公园空间布局进行研究。30分钟步行及10分钟车程两种模式分别用于计量住宅单位规模、街区规模及整体规模的公平值。(4)结果：研究结果表明，基于30分钟步行和10分钟车程的公允价值差异显着。对于30分钟步行出行模式，公平（IV类）和较公平（V类）区域的比例约为20%，而对于10分钟汽车出行模式，相应的类别超过90%。(5)结论：北京核心区城市帕克兰总体公平性以小汽车为主的出行方式较好，步行方式供给仍不足，帕克兰分布呈现两极分化。
(1) Background: The issue of equity in the layout of urban green park spaces is an essential dimension of urban public resource allocation. (2) Objective: To analyze the equity of the distribution of parkland in the core area of Beijing from a quantitative and spatial perspective. By measuring both vehicular and pedestrian transport modes, the study identifies areas with low levels of green space provision and provides strategies for optimization. It is hoped that this study can provide a basis for future green space construction in the core area of Beijing. (3) Methods: In this paper, the Gauss Two-step Floating Catchment Area Method (Ga2SFCA) is used to study the green park space layout in the core area of Beijing. The two modes of 30min-walk and 10min-car-journey were used to measure the fair values of the residential unit scale, the street district scale, and the overall scale, respectively. (4) Results: The study results show that the fair values based on the 30-min walk and the 10-min car journey differ significantly. For the 30-min walk-based travel mode, the proportion of fair (Class IV) and fairer (Class V) areas is approximately 20%, while for the 10 min car-based travel mode, the corresponding class is over 90%. (5) Conclusions: The overall equity of urban parkland in Beijing core area is better for car-based travel modes, while for walking modes, the supply is still insufficient, and the distribution of parkland is polarized.
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