Editor's note: Three new subway lines in Beijing will enter operation starting from Dec. 15. The new lines are the first phase of Line 3 (from Dongsi Shitiao to Dongbabei), Line 12 (from Sijiqing to Dongbabei) and the first phase of the Changping Line's southern extension (from Xitucheng to Jimenqiao and Zhufangbei). 

The sign for Line 3 at the entrance to Dongsi Shitiao Station in Beijing, Dec. 12, 2024. The official inauguration of the line will be held on Dec. 15. [Photo by Chen Boyuan/China.org.cn]