There's a similar set up at Hillsborough on the Sheffield Supertram, presumably for the same reason. The points for the junction towards Malin Bridge are in the segregated section just after the end of the platform, then there's interlaced track from there the 30 yards or so to the actual turning which is in the middle of a busy junction.
The north end of Moseley Street in Manchester had Metrolink learn the hard way why it's not a good idea to have a set of points embedded in a road junction, especially where hundreds of buses a day were turning a tight corner into their station!