China’s Qingdao Metro Line 3 Phase I begins trial runs December 17, 2015 | Asia Pacific News Qingdao has begun trial operations on the Metro Line 3 Phase I, which spans 12 km, connects Qingdao North railway station and Shungshan in the city centre, and covers 10 stations. Trial runs are being... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password