站点视角下南京市公共交通综合通达性

Comprehensive accessibility of public transport in Nanjing from the perspective of stations

公共交通站点作为城市公共交通的重要组成部分,其通达性可直接反映城市的交通发展水平。为探究南京市公共交通发展水平,以公共交通站点为研究对象,充分考虑不同公共交通站点间的换乘行为和换乘距离对换乘意愿的衰减作用,基于空间句法构建更客观准确的城市公共交通站点综合通达性模型,对南京市现有公共交通站点和在建交通站点进行通达性分析,揭示南京市公共交通站点通达性现状和未来短时间内的发展趋势。结果表明:南京市现有公共交通站点通达性在整体上呈现出“内高外低”的分布特征,南北两端区域的站点通达性较差。在建轨道交通线路的加入,使南京市轨道交通站点的整体通达性得到提升,但区域站点的通达性差距却进一步增大。

As an important part of urban public transportation, the accessibility of public transportation stations can directly reflect the level of transportation development of a city. In order to investigate the level of public transportation development in Nanjing, this paper takes public transportation stations as the research object, fully consider the transfer behavior between different public transportation stations and the attenuation effect of the transfer distance on the willingness to transfer, construct a more objective and accurate comprehensive accessibility model of urban public transportation stations based on the spatial syntax method, analyze the accessibility of existing and under-construction public transportation stations in Nanjing, and reveal the present accessibility of public transportation station facilities in Nanjing and its future development trend.The results show that the overall accessibility of existing public transportation stations in Nanjing is characterized by the distribution of “high inside and low outside”, and the accessibility of stations in the north and south ends is poor. With the addition of rail lines under construction, the overall accessibility of rail stations in Nanjing has improved, but the accessibility gap between regional stations has further increased.