Abstract: The article has analysed the conditions of the building of Beijing express rail lines, compared the states of population, economy and development of New York, Paris, Tokyo, and taken the successful experiences of urban express rail lines built and operated in these metropolis into consideration. The article has pointed out that Beijing should speed up the building of express rail lines. Based on the trip characteristics of the built lines of M1,M2,M4,M5,and line 13,the paper has put forward the suggestion that the express rail and regular rail run on the same truck, the operating plan be adjusted, and two cater-cornered express railway lines be added in the planned Metro network in Beijing so as to meet people’s need for fast and comfortable trips.

Key words: urban railway, urban express railway, city character, traffic trip

摘要： 在对北京市轨道快线建设的条件进行分析的基础上，与纽约、巴黎和东京等国际大都市的人口、经济实力以及城市发展状况进行对比，结合国际大都市城市轨道快线建设和运营的成功经验，提出北京市应加快城市轨道快线建设；对建成的1、2、4、5、13号线根据客流特点，采取快慢车同一轨道上运行，调整快慢车开行方案；在北京市城市轨道网中增设两条穿城对角轨道快速线，满足人们出行方便、快捷的需要。

关键词: 城市轨道交通, 城市轨道快线, 城市特点, 交通出行