Abstract: Due to the smaller transit capacity,it is considered that the monglines railways are not fit to offer urban transport service for passenger transport in urban areas. This paper analyzes the variaties of transit capacity on monglines railways with more stations and shorting of stations distances. It also discusses the transportation organizations on the mongline sections mixed with freight trains and MU trains. Taking some real railway for example，the paper concludes that it is possible for the mongline railways to provide passenger transport service for urban areas after reforming tracks and shortering stations distances.

Key words: hinge, mongline, urban rail transit, transit capacity

摘要： 针对铁路枢纽中的单线铁路由于通过能力较小往往被认为不适合参与城市执
道交通的观念，分析了在单线铁路上增加车站、缩小站间距时通过能力的变化;给出了单线区段采用动车组运营及在客货列车混跑条件下的铁路运输的组织方法;并以某条实际铁路线路为例进行了案例分析，得出了对单线铁路站间距进行缩短并进行适当改造后，可以参与城市交通运营的结论.

关键词: 枢纽, 单线, 城市轨道交通, 通过能力