Train journeys will be disrupted later this week due to major engineering work between Clapham Junction and Weybridge.
All routes to and from London Waterloo will be affected, with changes to train timetables from April 6 to 9.
Trains between London Waterloo and Weymouth will be diverted between Clapham Junction and Woking, extending journeys for up to 40 minutes.
Journeys between Waterloo and Basingstoke will also be diverted through Clapham Junction, with a reduced service running between London Waterloo and Twickenham to accommodate trains.
A replacement bus service will run between Clapham Junction and Chessington South, to replace the train service running from Waterloo.
This will also be running from Clapham Junction for passengers travelling to Guildford, Shepperton and Strawberry Hill.
Passengers are advised to check details before they travel.
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