On Sunday, Beijing Subway's Line 3, Line 12, and Changping Line will begin trial operations of extensions totaling 43 kilometers. The expansions bring the total length of the city's subway network ...

Passengers pose for photos at Chaoyang Station of Subway Line 3 in Beijing, capital of China, Dec 15, 2024. [Photo/Xinhua] Notably, the first phase of Line 3, which includes (passes) Chaoyang ...