(2 hours ago)Storx wrote From a Northstar point of view, it would be better to extend the X43 to Durham via the B6532, Sacriston, Durham Arnison and Durham Hospital imo.
Whether it would be sustainable who knows, but it's better than that long extended route around the world and does 2 of the places you've listed anyway. The links from South of Stanley have gone aswell and it opens new Stanley to Arnison links in the opposite direction which might pick a few people up which is a counter flow to the Metrocentre passengers.
Arnison centre is good idea. But duplicating the 16 in an already busy corridor does not seem good. Something like once or twice a day (one in morning return in early afternoon) to lanchester may sound good?