The work will be carried out on Saturday and Sunday (May 10 and May 11).
We have outlined and simplified the details so you can plan your journey.
All lines between East Croydon and East Grinstead or Uckfield will be closed on Saturday and Sunday due to engineering work.
Rail replacement buses will run in place of trains, operating on the following routes:
- Purley to East Grinstead, stopping at Upper Warlingham and Oxted only
- Upper Warlingham to Woldingham
- Oxted to East Grinstead
- Oxted to Crowborough
- Crowborough to Uckfield
Passengers are advised to check travel times in advance and allow extra time for their journeys, as replacement services may take longer than usual.