(28 Oct 2023, 6:42 pm)RobinHood wrote Many service 'patterns' are around this length.

Service 22/23/24 for example and things like the X12 (for Stockton).

But in the 57/57A case, it can be relieved after 2.5 hours if needs be.

(28 Oct 2023, 6:48 pm)mb134 wrote Isn't it around 4 hours 51 minutes for the full cycle? 

That would allow for 39 minutes of late running - at which point you'd probably just terminate it at Cramlington on its last trip and have it run back dead, because the other one will have gone?

Aye some valid, points always thought the interworking patterns were always nearer the 4 hours 30 minute mark rather than stretching towards the 5 hour mark.

Mind to be fair the 57/57A are pretty much two different routes beyond Seaton Delaval nowadays, shouldn't really be cancelling them as people will lose out especially on hourly services.