Study On The Accessibility Of Urban Park Green Space Based On Multiple Traffic Modes

A large number of landscape parks and small city parks are built with the construction of ecological civilization and the concept of Garden city putting forward and implement,when the construction of urban green space has a large scale increase in quantity and quality in China.At the same time,What kind of green space planning can provide residents with more quality Green service experience is an important proposition of urban green space distribution;the other hand,it is of great significance to evaluate whether the distribution of urban park green space,as a valuable social and public resources,is reasonable to promote social fair social harmony.In short,we are lack of careful discussion in the assessment of urban park green distribution of the rationality,even if we invest a lot of resources in the planning and construction of the park green space serving the city residents.This paper will conduct an in-depth study on the reasonable distribution of urban green space from the perspective of accessibility.Relying on the network analysis function of ArcGIS software platform,this paper calculates and describes the reachability of urban green space in detail based on the attributes of green space and residents' access to traffic behavior,which is based on the theory and method of calculating the reachability of urban green space both at home and abroad.Through the various levels of calculation and superposition,to obtain a more accurate urban park green space accessibility map which is as much as possible into the traffic details of residents accessing to urban green space.In the latter part of the paper,the calculation and analysis system of urban green space accessibility is applied to the Nanjing Old City,and the reachability of open green space and urban park in Nanjing old city is calculated and analyzed.Then,the paper puts forward rationalization proposals and new ideas from the perspective of accessibility,urban green space design,urban green space system planning and urban transport planning.The innovation of the paper lies in the refinement of the study of accessibility,Including the reclassification of green space types based on traffic patterns,and the different modes of transport cost of the refinement of the value of the calculation.The accessibility map obtained by the weighted superposition method has more scientific and scientific significance in the transportation field and urban green space system planning.