On Feb 19, 10:29*pm, "Richard J." wrote:
The Picc used to run 27 tph in the peaks, and I've never seen a credible
explanation of why they decided it was too difficult. *Now that 24 tph

Things did improve with a new timetable about 3 or so years ago. Not
sure if that was the change to 24 tph but before that things were just
getting ridiculus. Trains would be backed up northbound all the way
from Arnos Grove to in some cases Finsbury Park. No doubt if they'd
introduced stepping back at arnos and the signallers had pulled their
fingers out it so trains could reverse back from there in a minute or
less then it would never have occured but in cant-be-arsed britain I
guess they had to find another solution.

B2003