The Sydney metro train line under the harbour is set to open in August, with trial services already underway. If the trial operations go smoothly, the Chatswood to Sydenham section of the metro line will officially open in August. The central section of Sydney's new metro rail line is currently undergoing testing with a full service timetable in preparation for the public opening. The trial services will run from Chatswood, through the central business district, and into Sydenham, covering nine stations out of the planned 19-station City and Southwest line.