Construction of Ningbo Metro Lines 7 and 8 begins, China July 15, 2021 | Asia Pacific News Construction of Lines 7 and 8 of the Ningbo Metro network has commenced. These lines are a part of theNingbo Urban Rail Transit Phase III Construction Plan (2021–2026). Line 7 will span 39.4 km ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password