With the demise of PTS how many diagrams do the 777s cover on a weekday?
From my last visit (Monday 07/02/2025).
On the Northern line (at Sandhills) I saw 23 unique 777s before all routes repeated.
On the Wirral Loop (at Lime Street low level) I saw 18 unique 777s before all routes repeated.
There were two workings that were pairs (Sandhills) so maybe the 23 on the Northern line could/should be 25 if all four pairs were happening.
Both Sandhills and Lime Street took 1 hour 40 minutes to repeat and at fifteen minute frequencies that means you could get away with visiting both stations for 1 hour and 25 minutes each.
All routes are fifteen minute frequency except Ellesmere Port which is a thirty minute frequency.
Sandhills is outside so "fresh" but near to Krkdale staion and depot where six more 777s could be seen outside. That leaves six hiding elsewhere - where ?.
So all in all nearly up to full service I guess !.
And no sign of 507s so maybe at Southport ?.