Construction of trackless rail lines begins in Yibin, China May 5, 2021 | Asia Pacific News Construction of two trackless rail lines has commenced in Yibin, a city in Sichuan province. The two lines (Lines T2 and T4) will collectively span around 39 km and cover 20 stations. Construction is ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password