Research On The Evaluation Of The Accessibility Of The Greenbelt In The Third Ring Road Of Shenyang City Based On Network Analysis

With the improvement of people's quality of life,solving basic food and clothing is no longer needed by people's hearts.Having a healthy living environment and high-quality living standards have become the aspirations of people's hearts.The construction of ecological civilization is gradually deepening.As cities plan and construct cities,they also pay more and more attention to the planning and construction of city parks.As an important part of urban landscape,green spaces in city parks play an important role in the sustainable development of cities.It can reflect the overall level of greening and livability of a city,and the accessibility of green spaces in urban parks is an important reference for measuring the level of urban greening and the uniformity of urban green spaces.We have invested a lot of resources and energy in the planning and construction of urban park green space,but there are some deficiencies in the value evaluation.Whether the layout of urban park green space is scientific and reasonable,and whether the accessibility is good has become the key to the problem.This article takes the Third Ring Road of Shenyang City as an example,and comprehensively compares the related research and research methods of urban park green space accessibility by domestic and foreign scholars.With the help of the Network Analysis module of Arc GIS 10.3 software,the statistics of urban park green space attributes,The various modes of transportation for residents to reach the city park.More detailed calculations and descriptions of the green space accessibility of the city park within the Third Ring Road of Shenyang City.Through superimposed calculations at various levels,it is as close as possible to the actual traffic network to obtain different traffic.The accessibility map of urban park under different traffic modes is obtained,and the following conclusions are drawn through analysis:(1)In the area of the Third Ring Road in Shenyang,the existing urban park green space has an unreasonable spatial layout.Overall,the spatial location of the park is relatively concentrated.The parks in Heping District,Shenhe District,and Huanggu District are relatively dense,and the Tiexi District The park is scattered,and there are defects in the spatial distribution.The park green space in Dadong District,Yuhong District and Hunnan New District is too concentrated,and there is a shortage of large parks in large areas.It is recommended to increase the amount of park green space in areas other than Heping District and Shenhe District and distribute them evenly.Under the walking mode,the overall green space of the city park is poorly accessible.The service scope is mainly concentrated in the central urban area and exists in the form of point-like separation distribution.The area away from the city center covers a relatively small area.It is recommended to choose the area for walking Heping District,Huanggu District and Shenhe District.In the riding mode,although the service range of green space in urban parks has increased significantly,it is relatively concentrated in the central urban area,and the coverage of service areas in Heping District,Huanggu District and Shenhe District is better.It is recommended to ride a bicycle.Motor vehicle travel is currently the most convenient way of travel in Shenyang,with the best accessibility.It has an absolute speed advantage compared to the other two modes of transportation.However,it is contrary to the low-carbon environmental protection concept and try to avoid motor vehicle travel.