The work will affect trains from Monday to Friday (March 31 to April 4).
We have outlined and simplified all the details for you to plan your journey this week.
Monday, Wednesday, and Thursday (March 31, April 2, and April 3):
Engineering work is taking place between Rye and Ashford International, closing some lines.
From approximately 11pm until the end of service on Monday, Wednesday, and Thursday evenings, buses will replace trains between Hastings and Ore or Ashford International.
Monday to Friday (March 31 to April 4):
From 11.20pm until the end of service on Monday to Thursday evenings, trains that usually run between London Victoria and Worthing will instead run between London Victoria and Brighton only.
Replacement bus services will run between Brighton and Worthing or West Worthing.
Additionally, the 10.52pm train from Portsmouth Harbour to Brighton service will terminate at Littlehampton.
A replacement bus service will run from Littlehampton to Brighton, departing at 11.53pm and calling at all stations.