Planning Of Urban Park Green Space System Based On Accessibility Target

In recent years,accessibility,as a quantitative analysis method of urban park green space,has become more and more popular in practice.The park service before the common radius,only consider the planar radiation range of parks,equity evaluation and lack of park green space distribution and park service function,the effectiveness can not truly reflect the park on Residents' service.The city has been the per capita green area,ratio of green space and green coverage rate of three indicators as a measure of city green building standards,is conducive to grasp the quantitative characteristics of city green space in general,without considering the fairness and efficiency of public park use problems.The function and service of city residents is equal and convenient use of the city park,the accessibility of city parks green resources,is an important index of city environmental sustainability,is the only way which must be passed city development and the important principle.Therefore,the accessibility of goal programming is more suitable for the city park green space based on this relationship,hope to strengthen the construction of green parks and park city residents,for residents to use high frequency,more participatory,play the role of city park green space.The relevant concepts related to a specific interpretation,the accessibility of city parks is defined from a given location to overcome the resistance to the space of city parks using the traffic of a specific system of the absolute or relative degree of difficulty,reflects the spatial resistance people to horizontal movement process of city park overcome.This paper introduces the research progress of accessibility and urban park green space,and finds that the research of accessibility has attracted the attention of many scholars at home and abroad.So far,the tentative research on accessibility of parks and parks in China has achieved certain results.The accessibility of urban park green space is analyzed.The main mode of transportation for urban residents is walking and public transportation,which provides the conditions for selecting the analysis methods of accessibility of urban park green space.Through the comparison of several commonly used methods of accessibility research,the network analysis method can simulate realistic path,can reflect the effect of road network accessibility,accessibility analysis method is more accurate,and the network analysis method and its principle in the analysis of reachability is described.At the same time,the GIS platform of reachability evaluation is introduced,and its function in reachability analysis is explained.The method of network analysis in GIS is expounded.The relevance of reachability network analysis and GIS technology is explained.Based on the network analysis method and GIS as the technical support,the urban park green space based on accessibility goals is planned.Including the analysis of the accessibility of the park green space,and how to determine the park green space planning,and the accessibility analysis results are applied to the park green space planning.Planning the accessibility goal through the park green space in the center of Ma'anshan.The results show that the urban park green space planning based on accessibility goals makes the urban parks more evenly distributed and helps to increase the urban residents' utilization rate of park green space.