Research On The Accessibility Of Urban Parks Under Different Modes Of Transportation

Urban park is an important ecological infrastructure in the city,which plays an important role in improving the quality of urban environment,protecting the physical and mental health of citizens,enriching the ecological diversity of the city,and so on.However,with the rapid development of urbanization,the intensity of urban construction increases,the park green space system can not give full play to its ecological function and leisure and recreation functions.While paying attention to the number and area of urban parks,the accessibility of parks is also an important index to evaluate the rationality of urban parks and the sustainability of urban ecological environment.However,at present,few people study the accessibility of urban parks from the perspective of different modes of transportation,and the accessibilit y of urban parks There is a lack of attention to the temporal and spatial changes.In this context,the downtown Nanjing as the research area,urban parks as the main research body,combined with field investigation,data collection and questionnaire,and so on.The network analysis of Network Analysis module in Arcgis10.3 is used to study the accessibility of urban parks in 2017(current year)and 2030(planning target year).Research results show that the status of downtown Nanjing urban park land distribution is uneven,especially in jiangbei district,jianye district,and it is,under the condition of the status quo of traffic network and urban park layout,residents through common mode of transportation can’t enjoy urban park service effectively.When the introduction of rail transit,due to the thin rail lines,unable to completely cover the whole area,the accessibility of urban parks is relatively poor under this transportation.By comparing the accessibility of the urban parks in different years,the accessibility of the urban park under bicycle increased largely,particularly between 15 minutes and 30 minutes;As a kind of green travel mode,rail transit develops rapidly in the central city of Nanjing by virtue of its fast speed,stability,relatively low construction density and so on.after the planning,the accessibility of the residents to the urban park through the track is improved,the area of the urban park reaches the maximum within 30 minutes,and the accessibility improvement degree of the urban park in each time period is more balanced;Due to the limitation of research scope and travel speed,the accessibility of urban parks increases less under automobile traffic and walking mode.Therefore,this study advocates that we should strive to perfect the urban traffic network system through the transformation of the old city,so as to realize the organic renewal and sustainable development of the city.In order to improve the accessibility of the central urban parks and promote the sustainable development of the city,emphasis should be placed on the development of new rail transit,and at the same time,the sharing of bicycles should be improved to encourage residents to travel by way of bicycles,And further improve the free walking network and improve the comfort of walking environment.Future research will continue to focus on the specific impact of sustainable transport development on park accessibility,as well as improving the overall accessibility of urban parks through more,faster and greener modes of transport.The creation of appropriately accessible and equally shared urban parks provides a theoretical basis.