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通过对城市轨道交通线网形态和换乘特点的分析,给出轨道交通线路及线网通达性的量化描述方法。对典型线网通达性的理论计算表明:在同等条件下放射形线网比方格形线网的通达性好,便于换乘;在方格形线网中增加平行线路、斜向线路和环状线路(或弧形线路),对提高线网通达性的贡献依次为较小、较大和最大;在多条线路的交叉点设置换乘站和客运交通枢纽,是提高整个线网通达性、方便乘客换乘的有效措施。通过与莫斯科地铁线网比较,分析北京地铁线网通达性和换乘便捷性方面的不足和原因,提出应该适时选择适宜的线网节点建造多线换乘的客运枢纽站。
Through the analysis of the characteristics and transfer features of urban rail transit network, this paper gives a quantitative description method of the accessibility of rail transit lines and network. The theoretical calculation of the typical line network accessibility shows that the radiometric line network is more accessible than the square line network under the same conditions and is convenient for transfer. In parallel lines, diagonal lines and loops Shaped lines (or curved lines) contribute to the improvement of the accessibility of the wire network in the order of smaller, larger and maximum; setting up the transfer station and the passenger transport hub at the intersection of multiple lines is to improve the accessibility of the entire network, Convenient passenger transfer effective measures. By comparing with the Moscow metro network, this paper analyzes the shortcomings and reasons of metro network accessibility and transfer convenience of Beijing metro, and proposes that appropriate network nodes should be selected in time to construct the passenger transport hub with multi - line transfer.