Government of Hanoi approves two lines of Hanoi Metro, Vietnam April 26, 2020 | Asia Pacific News The city government of Hanoi has approved plans to develop Lines 3 and 5 of Hanoi Metro. These lines will collectively span over 47 km. They will be developed at an estimated investment of USD4.50 bil... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password