Research on walking accessibility evaluation of green space based on improved Ga2SFCA
Aiming at the problem that Gaussian two-step mobile search method can not meet the objective needs of fine governance of urban spaces,taking Xicheng District of Beijing as an example and given the differences of different park green space attributes,the park green space comprehensive service capability evaluation model and attractiveness evaluation model were constructed respectively on the basis of Gaussian two-step mobile search method in this paper,and a threshold variable method was put forward to solve the problem of fixed threshold.A comparative analysis of Gaussian two-step mobile search method and Gaussian two-step mobile search method with variable threshold was studied.The results showed that the proposed method made the search threshold refined and dynamic,which could be more accurately and truly reflect the actual travel of residents visiting park green space,and had reference value for the rational planning,layout and construction of urban park green space in the future.
Gaussian two-step floating catchment area methodsearch radiuswalking accessibilityurban park green space
NETL
NSTL
万方数据
