Engineering work is taking place between Sydenham and Norwood Junction between 00:20 and 05:15 on Tuesday to Friday, closing all lines.
Engineering work is taking place between Cricklewood and Farringdon, closing some lines from the start of service until 09:15.
Engineering work is taking place between Guildford and Gomshall and between Reigate and Redhill / Earlswood, closing all lines.
As a result, road transport will operate as follows:
Engineering work is taking place on 2 out of 4 lines between Tilehurst and Didcot Parkway.
Engineering work is taking place in the Wigan North Western area, closing some lines.
As a result of this, the 20:31 London Euston to Preston will terminate at Manchester Piccadilly.
Engineering work is taking place overnight between Ely and Kings Lynn, closing all lines overnight from Monday evening until Friday morning.
Engineering work is taking place between Three Bridges and Brighton / Lewes, closing all lines from 23:45 each night until 05:30 the following morning.
Engineering work is taking place in the Redhill area, closing some lines.
Trains will be diverted and will not call at stations between Purley and Redhill.
Replacement buses will be provided and call at all stations between Purley and Horley.
Engineering work is taking place between London Victoria and Sutton, closing some lines from 23:45 until 05:15 the following morning.
Engineering work is taking place between Hastings and Ashford International, closing all lines from 23:15 each evening until 05:30 the following morning.