Passenger operations begin on multiple lines of Chengdu Metro and on Ningbo Rail Transit Line 4, China December 21, 2020 | Asia Pacific News Chengdu Rail Transit Group has commenced passenger operations on Lines 6, 8, 9, 17, and a section of Line 18. The Chengdu rail transit network now spans 558 km and covers 373 stations. Line 6 spans 68... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password