(03 Dec 2018, 9:12 pm)S830OFT wrote Doubt this would happen but Jesmond could run the X12 to Durham with either Belmont or Stockton carrying on through to Middlesbrough. That could free up several drivers to operate other services. Also Managers with a PSV License could do some services if they are available. Additionaly Arriva could think of a decrease in frequency to enable more services to operate.
GNE already have the 21/X21 covering most if not, the whole of the X12 route.