Dubai metro Green Line to be opened on September 9, 2011 August 24, 2011 | Middle East & Africa News Dubai’s Roads and Transport Authority (RTA) will open the Green Line of Dubai metro on September 9, 2011. Trial runs of the metro have been on since early 2011. The Green Line is the second line of ... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password