Construction begins on Chengdu Rail Transit Ziyang Line, China November 30, 2020 | Asia Pacific News Chengdu Rail Transit Group Company Limited has commenced construction works on Ziyang Line of the Chengdu Rail Transit network. Ziyang Line will span 38.7 km (23.47 km elevated, 10.42 km underground a... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password