Beijing Line 16 PPP subway project is a rapid transit rail line in Beijing with a route that runs 50 km in far western Beijing, parallel and to the west of Line 4.
Metro Line 16 is an important line connecting the north and south of Beijing and has an overall investment of Rmb47.4 billion ($6.9 billion).
The line is managed by the Beijing MTR Corporation and uses eight-car high-capacity wide-body A-size trains.
Construction began in December 2013 and the first phase opened to passengers on 31 December 2016.