THE construction of Asia’s largest underground transportation complex is proceeding smoothly in Beijing, as the work on the station building core area has started.

Engineers have broken ground on this key part of the large structure that makes up the Beijing sub-center comprehensive transportation hub, located in east Beijing’s Tongzhou District, according to China Railway Construction Corporation Ltd., one of the project’s developers.

The 1.28 million-square-meter traffic complex with a three-layer underground structure is another mega project in the Chinese capital after the Beijing Daxing International Airport.

The project, which began construction Nov. 30 last year, linking cross-regional and intercity railways, and several metro lines, is scheduled to be ready for traffic by the end of 2024.

(Xinhua)