Construction of stations begins on Guiyang Metro Phase I Line 3, China October 16, 2021 | Asia Pacific News Construction has begun on Guiyang Metro Phase I Line 3. The line will span 43 km from Tongmuling to Low Bay and cover 29 stations. It will provide transfer facilities to Lines S1, 1, 2, S3, and 4. &nb... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password