(07 Mar 2022, 5:40 pm)Dan wrote The 55 hasn't served Silksworth since the 33 was reinstated - appreciating the 33 has been on and off more times over the years than you and I put together have had bacon sarnies!GNE could try something new with the 55, taking it from Peterlee. Sherburn, Low Pittington, Houghton, Sunderland.
There's no unique sections of route on the 55 other than the peak-time link to Doxford International - arguably the link to Sunderland exists with the 39, it's just towards Houghton-le-Spring where there is no alternative.
So with the X1 going back to old times, I wonder if the 20 will stay at every 15 mins.
Personally I would put the Sunderland - Durham at every 10 mins, with 3ph extending to South Shields.