针对北京城市轨道交通继续呈现蓬勃发展的 势头，明确了北京新一轮城市轨道交通建设要达到“好 使用、好运营、好维护、好升级”的“四个好”基本原则， 提出当前北京城市轨道交通在规划、设计、施工、安全 监管等方面的工作重点，为又好又快发展城市轨道交 通事业创造条件。

In view of the flourishing development trend of Beijing urban rail transit，the author clearly defines the four-fold fundamental principles to be achieved in the new round of urban rail transit construction，namely: convenient ridding ，good operation ，fine maintenance ，promptly upgraded ，and puts forward the current focal points in terms of planning，design，construction，security supervision etc． for Beijing urban rail transit so as to create backgrounds for the good and rapid development of urban rail transit business．

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