A large section of the Northern line's Bank branch will close for 17 weeks from January 2022 — meaning many commuters and passengers will need to change their usual route.
From 15 January until mid-May 2022, there will be no trains between Kennington and Moorgate. Why? Because of the Bank Station Capacity Upgrade, where they're building a brand new platform plus introducing various accessibility improvements, at what is the busiest interchange on the tube network.
So how are south Londoners going to commute to and from the City?
A temporary new bus route — the 733 from Oval to Finsbury Square — will be in use on weekdays (running every 7-8 minutes).
And the Waterloo & City line will be running a full service again on weekdays from 22 November, offering an alternative route to and from the City.
Unfortunately, the improvement works at Bank also mean a reduced service between Camden Town and Moorgate; to ease this, TfL is promising a train at least every two minutes running on the Charing Cross branch of the Northern line, during peak times.
TfL predicts Waterloo, Embankment, Tottenham Court Road and London Bridge will get especially busy at peak times over the 17 weeks of works, and has several suggestions on how to avoid the worst of the various inconveniences.
Still, when we've got Bank station 2.0, hopefully we'll find this has all been worthwhile.