Construction begins on Xuzhou Metro Line 4, China August 2, 2022 | Asia Pacific News, News Construction work has begun on Xuzhou Metro Line 4 Phase I in China. Line 4 Phase I will span 26.2 km (underground) from Qiaoshangcun to Tuolanshan Road, covering 19 stations. The average distance be... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password