Study On Spatial Accessibility Of Residents And Urban Park In Hohhot

As an important part of basic public facilities,urban parks play an important role in improving urban livability,It plays an important role in protecting the physical and mental health of citizens.With the rapid advancement of urbanization and the increasing intensity of urban construction,the spatial distribution of parks in the city is not uniform.Accessibilit,as an important concept in human geography to evaluate the spatial layout of public service facilities,is a quantitative expression of residents’ willingness and ability to reach service facilities or activity places under the premise of overcoming obstacles such as distance and time.The rationality of the space allocation of park resources.This paper takes the central urban area of Hohhot as the research area,residential quarters as the basic research unit,and combines the data of urban parks to conduct a comprehensive study on the spatial accessibility of residents-urban parks.Using the kernel density estimation method,the spatial superposition method,and the statistical index method to analyze the supply and demand of residents-urban park space;with the help of the accessibility index statistical analysis,walking,cycling,public transportation,and driving 4 kinds of transportation within the threshold range of 10-20 min The number of accessible parks in each community by travel mode;the Gaussian two-step mobile search method is used to analyze the accessibility level of each community under the four modes of transportation within different thresholds;Pearson correlation analysis,fair performance index,bivariate space autonomic Correlation analysis analyzes the accessibility of special groups of the elderly and children.The following conclusions are drawn:（1）The number of accessible parks in each community calculated based on travel time increases with the increase of the time threshold,and the opportunities for residents to approach the park increase;further consider the effect of park supply,population demand and the attenuation of their mutual distances.The spatial accessibility of residents-urban parks is calculated by the Gaussian two-step mobile search（Ga2SFCA）method.Compared with the other two methods,the degree of differentiation of the accessibility value was significantly lower.（2）Walking,as a green and healthy way of travel,is most commonly used in residents’ travel,but its traffic capacity is far behind that of driving and cycling,the travel efficiency is low,and there is obvious spatial isolation in the distribution of accessible areas;Due to the influence of the traffic speed,the accessibility of urban parks is much greater under the cycling mode than walking;within the set time threshold range,most areas can reach the nearest urban park within 15 minutes of cycling,which is different from that under the motor vehicle travel mode.The park accessible area is comparable.Public transportation is affected by routes and stations,and the accessibility of urban parks is poor.（3）Under the 4 types of transportation,blind areas of accessibility and low-value areas are concentrated in areas with dense residential distribution,large population demand,but few parks,including:the surrounding areas of Victory Moore City,Hohhot City The surrounding area of No.27 Middle School,Jinqiao Primary School in Saihan District,and Huacheng Community of Times in the west of the study area.（4）Under the four modes of transportation,the areas with high accessibility values are concentrated in the northern strip park area where the parks are clustered and the landscape belt along the Donghe River.Residents have more opportunities to choose,which leads to high accessibility values.Under walking and public transportation,according to the calculation principle of the Ga2 SFCA method,since the Nanhu Wetland Park is located at the edge of the study area,only sporadic communities can be reached within the set threshold range.The park area is large and the population demand is small.Extremely high values in the cell.（5）When considering the special needs of the elderly and children for parks,under different travel modes,the level of park services enjoyed by the elderly is lower than the average level of the resident population,while the level of children is slightly higher than the average level.On this basis,clustering analysis was carried out on the accessibility of urban parks and population demand of each community,and it was concluded that each residential community in the core area showed agglomeration of "high supply-low demand","low supply-low demand",and marginal The district presents the agglomeration characteristics of "high supply-high demand" and "low supply-high demand".