Thousands of commuters from the region heeded warnings and avoided the trains into London this morning - as one of the biggest rail engineering projects in 100 years gets underway at Waterloo.
Passengers who did brave the Monday morning rush were met with quieter platforms and carriages than expected. But the £800 million upgrade means nearly half of the platforms are closed and services across the region are reduced.
The Network Rail Chief Executive vowed the work at Britain's busiest station will be completed in three weeks, as our Transport Correspondent Mike Pearse reports.
People travelling into London this evening are being warned of long delays because of a signalling problem at Waterloo.
Trains running towards the capital may terminate at Basingstoke, Guildford and Woking with delays of up to an hour.
It's expected to continue for the rest of the night.
Adam Berreen from Kent is taking part in the re-enactment of the Battle of Waterloo. He is a member of the 42nd Highlanders group of re-enactors who are based at Chatham. They have been joined by fellow enthusiasts from all over the world.
There is some disruption on South West Trains this morning between London Waterloo and Clapham Junction due to emergency engineering works at Queenstown Road.
Some lines are blocked and trains may be cancelled, delayed or revised at short notice. Disruption is expected to continue until around midday.
A major signalling problem in the Wimbledon area blocked both of the lines away from London Waterloo - all lines now open again. South West Trains are making changes to services to try and mitigate delays._ _
- London Waterloo to Dorking services will not run in either direction from 13:24 until further notice.
- London Waterloo to Hampton Court will not run in either direction from 13:06 until further notice.
- London Waterloo to Guildford via Cobham services will call additionally at Berrylands in both directions.
- Train services between London Waterloo and Salisbury/Exeter/Bristol will not run between Basingstoke and London Waterloo. Customers will need to change trains at Basingstoke to complete their journey.