Research On The Accessibility Of Sports Facilities Of Central District In Lanzhou City Based On Ga2SFCA Method

With the improvement of people’s quality of life and the increasing demand for health by residents,sports facilities,as an important part of urban public service facilities,play a vital role in meeting residents’ own healthy life needs.However,due to the lack of unified planning,the configuration of sports facilities often has an unreasonable layout,which makes it easy for residents under different location conditions to obtain sports facilities resources to produce great differences.Therefore,the study of the accessibility of urban sports facilities resources is of great practical significance for realizing the relatively reasonable distribution of sports facilities.This paper uses Gaussian two-step mobile search method to study the accessibility of sports facilities in central Lanzhou,which provides reference for the rational allocation of sports facilities resources in central Lanzhou.The research content mainly includes:(1)The GIS spatial analysis method was used to study the current spatial distribution of sports facilities in the central urban area of Lanzhou,and the spatial distribution characteristics of sports facilities and the relationship between sports facilities distribution and population distribution were analyzed.(2)The Gaussian two-step mobile search method is used to study the accessibility of different types of sports facilities under different modes of transportation(walking,cycling,driving,subway)and the comprehensive accessibility characteristics of sports facilities,reveal the problems in the accessibility of sports facilities in the central urban area of Lanzhou,and analyze the influencing factors affecting the accessibility of sports facilities.(3)Combined with the problems in the spatial accessibility of sports facilities,corresponding optimization suggestions are proposed.The results show that:(1)there is a regional imbalance in the distribution of sports facilities in the central urban area of Lanzhou,and there are obvious quantitative differences between different districts;Sports facilities showed obvious agglomeration distribution characteristics within the scope of study,and the distribution of different types of sports facilities was more obvious,city-level sports facilities showed random distribution characteristics due to the small number,and street-level sports facilities and community-level sports facilities showed agglomeration distribution state.The spatial coupling degree between sports facilities and the population distribution in residential areas is good,and it has obvious east-west directional characteristics.(2)The spatial accessibility of community-level sports facilities is mainly distributed in Chengguan District and Anning District,making it more convenient to obtain community-level sports facility resources by cycling transportation;The spatial accessibility of street-level sports facilities is uneven within each district,and the level of accessibility is higher under cycling transportation.The spatial accessibility of city-level sports facilities extends to all sides centered on facilities,and there are no city-level sports facilities in Anning District,and it is difficult to obtain city-level sports facility resources under the mode of walking and cycling transportation.The spatial accessibility of comprehensive sports facilities increases with the increase of time under the pedestrian and cycling modes of transportation,and the service level decreases under the mode of vehicular transportation,and the accessibility level under the subway mode is worse than that under the cycling and cycling mode.(3)There are three major problems in sports facilities in the central urban area of Lanzhou: uneven distribution of spatial accessibility,poor accessibility level and large difference in accessibility.(4)The influencing factors of the accessibility of sports facilities in the central urban area of Lanzhou mainly include internal factors(spatial distribution of sports facilities,number of sports facilities,scale and level of sports facilities)and external factors(economic factors,population factors,distance factors and transportation modes).Based on the research results,it is proposed to solve the problems of uneven spatial accessibility,poor accessibility level and large difference in accessibility of sports facilities in central urban areas of Lanzhou,starting from four aspects: differentiating the addition of different types of sports facilities,improving the service capacity of sports facilities,strengthening the opening and sharing of school sports venues,and improving the slow traffic network system.