Passengers will face difficulty over Easter as there will be no trains running from Victoria to Sussex and Gatwick Airport.
There are plans for Network Rail to rebuild a critical junction at Battersea Park and as a result there will be no Gatwick Express or Southern trains from Victoria.
There will be services from Southern and Thameslink, which will run trains from London to the coast and Gatwick Airport. Trains will run from London Bridge and London Blackfriars.
Subject to improvement work further afield in Kent, Southeastern services from the station will run as normal.
Buses will replace trains on the Horsham line to Arundel in West Sussex. This is due to work to replace timbers on a railway bridge over the River Arun. Passengers are advised that this will add around one hour to their journey times on that route.