The vast majority of London and Surrey's train network will be unaffected by engineering work this weekend, but passengers are still advised to check before they travel.

Services into and out of London Victoria will be affected, from today, Saturday April 30 until May 2. 

There will be reduced services running from the central London station tooward East Grinstead, Caterham, Dorking and Epsom. 

According to the National Rail website:

A reduced service will run to / from London Victoria as follows:

  • two per hour London Victoria to East Grinstead.
  • two per hour London Victoria to Caterham (via Norwood Jn).
  • one per hour London Victoria to Dorking (via Crystal Palace/Sutton).
  • one per hour London Victoria to Epsom (via Crystal Palace/Sutton).

There will be no services from Victoria to Brighton, Beckenham Junction or Uckfield or between London Bridge and London Victoria.

There will be rail replacement bus services between Balham and East Croydon and Tulse Hill and Sutton. 

In addition, some changes will be made to services on May 1 only.

These include no services between London Victoria and Battersea Park, and a reduced service from Clapham Junction.

On Sunday, trains will run:

  • two per hour Clapham Junction to Dorking (via Crystal Palace/Sutton)
  • two per hour Clapham Junction to Caterham (via Norwood Junction)

The following alteration will also apply to trains between:

  • London Victoria and Brighton/Portsmouth Harbour/Ore/Bognor Regis will be diverted to run to/from London Bridge.
  • London Bridge and East Croydon (via Streatham) services will be diverted to travel via Crystal Palace.
  • London Bridge and Tonbridge services will operate Redhill to Tonbridge.
  • London Bridge and West Croydon services will not run.
  • London Bridge and Crystal Palace (via Peckham Rye) services will not run.

A rail replacement bus service will operate:

  • Balham to East Croydon (via Streatham Common/West Croydon)
  • Tulse Hill to Sutton (via Mitcham Junction)

Tickets will be accepted on Thameslink and Underground services.

A spokesman for Network Rail said: "The Early May Bank Holiday will be one of the least disruptive bank holidays for rail travel for many years, with over 96 per cent of the railway network unaffected by Network Rail’s planned improvement work.

"It is estimated around £33m will be invested by Network Rail over this weekend, although compared with the recent Easter programme, there will be significantly less disruption on major routes, with the overwhelming majority of journeys unaffected."

Passengers can follow the works on Twitter, using the hashtag #MayBHWorks