Bangkok Skytrain Green Line extension to open in April 2019; operations contract in January 2019 December 10, 2018 | Asia Pacific News Trial operations have commenced on the extension of Sukhumvit Line (Green Line) of the Bangkok Skytrain and passenger services are scheduled to begin in April 2019. The extension spans 9 km from Berin... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password