@Translink_NI, when will the Newcastle bus start departing from the Grand Central Station? Does it not make sense for the 237 to arrive and depart from the station (via the motorway), considering the first (bel-new) and last (new-bel) stop is Ballynahinch?
@FundTheNINE@deptinfra Downpatrick to Newcastle line wouldn't get beyond Dundrum due to the new buildings and GAA pitch build on the existing line.
Best bet would be to divert around Dundrum and stop on the Newcastle road beside the Burrendale Hotel and shuttle the rest of the Journey.