(30 Jul 2014, 8:14 am)Dan wrote (Fairly) recent examples including the PVR going up by 1 to assist reliability and time-keeping, the TEN PVR going up by 1 for the same reasons (which, so I'm told, has worked incredibly well, up to now),
Yes, Hexham regularly dispatches the 'spare' before the delayed incoming vehicle arrives, thus maintaining the schedule.