Phase I of Chengdu metro Line 2 enters into revenue service October 5, 2012 | Asia Pacific News The first phase of Chengdu metro Line 2 entered into revenue service in September 2012. Phase I of the line spans 23 km covering 20 stations with a northwest-southeast alignment from Chadianzi bus sta... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password