(17 Oct 2021, 9:46 pm)Keeiajs wrote You could upgrade the X20 to Double Deckers (7), and extend it to BowBurn, every 30 mins. 

Or Create a 20A every 20 mins, 20 goes back down to 10. 20A to BowBurn Amazon just from Sunderland to Durham.

There's a much bigger commercial risk in GNE extending a service outside of their territory to serve Amazon compared to the Follingsby example. The 4 being revised to serve Amazon was only a very slight variation to the route - not a 20 minute extension. 

I think the problem with the Bowburn site for Arriva is it would mean taking one of the 56/57A/X12 out of Coxhoe which they clearly didn't want to do so again it would involve putting on a new service from Durham to the site which as I said is much more of a commercial risk