(27 Sep 2020, 11:00 pm)Storx wrote I don't believe they do now, I live on the route and it's definitely Ashington doing evening runs lately, Blyth seems to drop in and does a random few buses at around 7pm though during the week anyway.

https://bustimes.org/services/57a-north-...2020-09-21

Seems very random but assume there's some logic behind it.

Yeah evening runs are all Ashington, bar that Blyth run as the two Ashington evening boards go off for driver breaks. 

From memory it's the 0649 57A to Whitley Bay and 0652 57 to Whitley Bay that eventually run onto the evening runs - though if they've been allocated anything unsuitable for the evening runs they are swapped in the evening when they return to Ashington for the driver break.