Jarle Hammen Knudsen wrote:
On Thu, 05 Apr 2018 11:59:16 +0100, Recliner
wrote:

ridership is unexpectedly down

Why?

Obviously, nobody really knows, but it could be partly because of a
long-term trend not to go into the office as much, or because of the
frequent strikes on Southern, and London Bridge and Waterloo closures for
building work. If fewer people were getting into central London, fewer
people would be using the Tube.