Study On Accessibility Of Wuhan Urban Complex Park

As an important part of Urban green space system,Urban park green space is the carrier and the foundation of urban development.It has important function and role,to increased opportunities for social interaction,to strengthen the construction of spiritual civilization,relieve urban pressure and improve the sustainable development of city.Urban park green space will be convenient to enter,can effectively meet the using demand of urban residents,is one of the important indicators to measure whether cities habitable.Traditional evaluation index focus on urban green space,park area per capita,etc.,is difficult to effectively express the actual usage of city park green space.Based on this,this article from the new research Angle of view to evaluate urban park green space.Accessibility of urban park green space embodies the rationality of spatial distribution of urban park green space resources.It can effectively express the potential of it service for urban residents and implementation level.It is one of the evaluation index of urban green space present situation,and got more extensive research at home and abroad.At present,the research of the accessibility of urban park green space is mainly based on GIS,The main consideration is the accessibility of the urban park green space in the physical space level,ignoring the urban park green space its own attributes on the psychological impact of the user.Based on the questionnaire survey and field interview study of the urban park in Wuhan City,this paper puts forward that the urban greenbelt upturn should include spatial reachability and psychological up to two meanings.The study adopted a new technical method,and from the perspective of the needs of users to supplement the urban park green space accessibility evaluation system.This paper evaluates the urban green park of Wuhan City by using spatial syntax theory and satisfaction theory.The spatial syntactic theory is based on the perspective of topology,and uses Depthmap to quantify the spatial reachability of urban integrated park green space by using global integration degree,local integration degree and comprehensibility index.The evaluation of satisfaction is based on the investigation of five typical urban parks in Wuhan,and the data comprehension and analysis are carried out.Fuzzy comprehensive evaluation method was used to establish the evaluation model of psychological accessibility,Including the first-level fuzzy comprehensive evaluation,second-level fuzzy comprehensive evaluation and third-level evaluation factor satisfaction value for quantitative analysis.According to the spatial model of urban green space in Wuhan city park,it is found that the global reachability of urban green park in Wuhan is weak,the average global The localized degree of local integration is about 1.834,and the local integration degree of urban integrated park green space is more than 1,which indicates that the local reach of Wuhan city park is strong,integration value is 0.297,and the global reachability is the ink lake park(0.346);The localized degree of local integration is about 1.834,and the local integration degree of urban integrated park green space is more than 1,which indicates that the local reach of Wuhan city park is strong;The value of R~2 is about 0.038 and the R~2 value is less than 0.5,which indicates that the comprehension of urban green space in Wuhan is weak,and it is difficult to perceive the whole network through the local space network.Based on the evaluation of the satisfaction degree of five typical urban parks in Wuhan,it is found that the overall psychological accessibility of urban green park in Wuhan is weak.In the evaluation index system,among the five factor factors of the project layer,the psychological accessibility of landscape attraction,facility supply and route identification is weak.Among the 20 factors in the factor layer,the factors with high psychological accessibility include travel experience and garden route experience.The factors with low psychological accessibility include water landscape,sculpture and barrier-free facilities.Finally,the author puts forward two countermeasures:(1)perfects the spatial planning of urban integrated park green space,and puts forward two suggestions on how to improve the spatial reachability and psychological accessibility of urban green space in Wuhan city.From the point of view of urban planning and management,(2)to improve the level of urban green space service and improve the accessibility of the city,with a view to Wuhan city park green space to provide a reference for the optimization and transformation.