Engineering work is taking place between Finsbury Park and Stevenage, closing various lines via Welwyn Garden City / Hertford North.
Engineering work is taking place between Lewisham to Hayes, closing all lines very early on Sunday morning.
Engineering work is taking place overnight in the Swanley area, closing some lines.
Engineering work is taking place overnight between Luton and West Hampstead Thameslink, closing some lines.Tuesday and Thursday only:
Engineering work is taking place between East Croydon and Oxted, closing all lines overnight from Monday evening until Friday morning.
Engineering work is taking place between West Drayton and Maidenhead, closing some lines early on Saturday morning.
Engineering work is taking place between Upton and Bidston, closing all lines on Monday, Tuesday and Thursday evening.
Engineering work is taking place between Watford Junction and St Albans Abbey, closing all lines on Wednesday evening.
Engineering work is taking place between Bourne End and Maidenhead, closing all lines very early on Sunday morning.
Engineering work is taking place between Guildford and Surbiton / Leatherhead, closing all lines.Buses will replace trains between Guildford and Surbiton / Leatherhead.