York to Darlington set in 2015, using the following; train class 158 in northern rail Arriva livery (both 2 & 3 car sets) along side the train class 221 in cross country Arriva livery (5 car sets) Follow there daily time table set in the period of 2015. Services with limited stops, also services with more frequent stops.
As mentioned in a seperate thread, this could be Leeds to Darlington via York to link two existing routes.