What a load of **** recently.

But why has it nosedived just in the last 2 months? Unfortunate
coincidences, PPP or something else.

And why close the City Northern Line again, last time it was closed for
many months for the stated benefit of a few minutes reduction in journey
time. How many lifetimes would it take for these
few minutes to overcome the 4 months inconvenience? Is this like the "we
are holding this (packed full) train to regulate the service style maths?".