The work will take place from Monday to Friday (April 14 to April 18).
We have outlined and simplified the details so that you can plan your trip.
The engineering work will be carried out between London Bridge and East Croydon, closing some lines through Sydenham on Mondays, Wednesdays and Thursday night.
Monday, Wednesday and Thursday (April 14, April 16 and April 17):
The 11.58 pm train from the London bridge to Streetham Hill Train will not run.
A replacement bus will run from London Bridge to Streatham Hill, calling the stations through Sydenham.
Tuesday, Thursday and Friday (April 15, April 17 and April 18):
The 12.17 AM train from the London Bridge to Caterham train will deviate between London Bridge and East Croydon.
He will run between London Bridge and Selhurst and work later than usual.
The 12.35 am train from the London bridge to East Croydon will run between London Bridge and East Croydon.
A replacement bus will run from London Bridge to Norwood Junction, calling the stations through Sydenham.
From Monday to Thursday (April 14 to April 17):
The engineering work is also being carried out between Earlswood and Purley, closing all the lines during the night from Monday night until Thursday morning.
The trains will run to a schedule amended between Horsham, the Gatwick and Purley airport, with trains that cannot call Redhill, Merstham and Coulsdon South.
Railway replacement buses will work between Gatwick, Horley, Redhill and Purley airport.
