Engineering work, to support new, more frequent trains including Crossrail, is taking place between Slough and Maidenhead, closing all lines.
Engineering work is taking place from 22:15 on Saturday 22 and all day on Sunday 23 September between Southampton Central and Bournemouth, closing all lines.
CrossCountry
Engineering work is taking place between Carmarthen and Pantyffynnon / Swansea, closing all lines.
Arriva Trains Wales:
Engineering work is taking place between Crewe and Alsager, closing all lines.
East Midlands Trains:
Buses will replace trains between Crewe and Alsager.
London Northwestern Railway:
Engineering work is taking place between Maidstone East and Ashford International, closing all lines.
The 22:55, 23:25, 23:55 and 00:25 London Victoria to Ashford International services will terminate at Maidstone East.
Engineering work is taking place between Newport and Severn Tunnel Junction, also between Newport and Cheltenham Spa until 14:00 on Sunday 8 July, closing some lines.
Buses will replace Arriva Trains Wales services between Newport and Cheltenham Spa.
Engineering work is taking place between Shepherds Bush and Watford Junction, closing some lines.
Between 20:00 on Saturday and 12:00 on Sunday and after 21:00 on Sunday, services between Clapham Junction and Watford Junction will start / terminate at Shepherds Bush.
Engineering work is taking place between Barking and Grays via Rainham and also between Chafford Hundred and Pitsea, closing the lines.
Services between Southend Central and London Fenchurch Street via Ockendon will start / terminate at Chafford Hundred.
Engineering work is taking place between Barking and London Liverpool Street, closing some lines.
Until 13:30 services between Shoeburyness and London Liverpool Street will be diverted to start / terminate at London Fenchurch Street and will call additionally at West Ham.
Engineering work is taking place between Norwood Junction and Sutton, closing all lines.