Trial operations of Chengdu Metro Line 27 begin, China December 16, 2024 | Asia Pacific News, News Trial operations have commenced on Line 27 of Chengdu Metro. This is the first fully automated, partially elevated metro line in the city. Line 27 spans 24.86 km and covers 23 stations (six elevated, ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password