城市轨道交通线路的合理长度

城市轨道交通线路的合理长度是轨道交通规划的一个重要问题，直接影响到线网的规模，是公共理财观念在线网规划中的应用。结合“城市轨道交通线路合理长度为15～35km”的讨论，从城市轨道交通的功能定位、城市轨道交通与城市规划一体化、都市交通一体化、线路直达性及新理财观念等方面，对影响城市轨道交通线路合理长度的因素进行综合分析，提出几点建议。

Reasonable Length of an Urban Rail Transit Line

Reasonable length of an urban rail transit line constitutes an important issue in rail transit planning which affects directly the scale of network and reflects the implementation of the outlook of public financial management in network planning.In view of the discussion about 'the reasonable length of an urban rail transit line should be 15~35 km',the author performed a comprehensive analysis on the affecting factors for the reasonable length of an urban rail transit line in terms of the function orientation of urban rail transit,integration of urban rail transit and city planning,integration of urban communications,non-stop character of the line and new outlook of financial management,with some suggestions put forward.