In message
-sept
ember.org, at 17:37:24 on Thu, 3 Mar 2016, Recliner
remarked:

It's not the crowds on the trains that's the problem. It's the crowds at
the western end of the Green Park Picc platforms queueing for the
escalators.

What are these crowds? Green Park is the 14th busiest, with a third of
the entries and exits of the top ones.
--
Roland Perry