From this morning's TfL weekly bulletin-
ELIZABETH LINE-
Friday 29 March to Monday 1 April
No service between Paddington and Abbey Wood, and between Whitechapel and Stratford
Use Tube, DLR or rail services or local bus routes. These works are to allow for signalling software updates, which will result in fewer delays and a more reliable service.
Reduced service between Paddington and Heathrow/Maidenhead
This is due to HS2 works at Old Oak Common station.
Saturday 30 March
The last train from Heathrow Terminal 5 to Paddington (at 00:07) will terminate at Ealing Broadway
Sunday 31 March
No service between Paddington and Ealing Broadway until 07:45
Until 05:30, customers travelling between central London and Heathrow should use the Piccadilly line. Customers travelling between central London and Heathrow between 05:30 and 07:45 should use the Central line to Ealing Broadway to connect with Elizabeth line services. This is due to HS2 works at Old Oak Common station.
DOCKLANDS LIGHT RAILWAY (DLR)
(affects people going to Greenwich)
Friday 29 March to Monday 1 April
No service between Stratford and West India Quay
Use the Jubilee line, alternative DLR services or local bus routes. This is due to track replacement works to improve safety and reliability.
No service between Tower Gateway and Shadwell, and between Westferry and Canning Town
Use alternative DLR services running between Bank and Lewisham (via Canary Wharf). Rail replacement buses will run between Westferry and Canning Town. This is due to track replacement works to improve safety and reliability