(30 Oct 2014, 10:18 am)cbma06 wrote I would of numbered the X1 Durham-Middlesbrough as a X2, and split the registration at Durham, just like what GNE did at Peterlee with their X7.
Arriva stick to the rules hence why the Loftus-Whitby section of the 5 was renumbered X5 last October to avoid any questions from official circles. Instead it seems it will be X12/X2 now.