Passenger services begin on urban rail lines in three cities in China September 28, 2020 | Asia Pacific News Passenger service has commenced on Chengdu Rail Transit Line 18, Kunming Metro Lines 4 and 6 (Phase II), and Huangpu Tram Line 1. Chengdu Rail Transit Group Company Limited has commenced service on ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password