Beijing begins test runs on its first maglev line; to deploy 10,000 electric buses by 2020 August 6, 2017 | Asia Pacific News Trial runs have commenced on the Beijing Metro Mentougou Line (S1 Line), which is the first maglev line in Beijing. The line spans 10.2 km from Mentougou to Pingguoyuan, covering eight stations. It wi... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password