A fault with the signalling system between Southampton Central and Fareham means all lines are blocked. As a result, trains may be cancelled, delayed or revised. This is expected until 08:00. 

Southern Customer Advice
No trains will run between Southampton Central and Fareham. You will need to use an alternative route to complete your journey.

Trains which would run between Brighton and Southampton Central will instead run between Brighton and Chichester or Bognor Regis.

Trains which would run between Southampton Central and London Victoria will instead run between Portsmouth and London Victoria.

Please check journey planners and station information boards before you travel, and allow for extra time to reach your destination.

To see if your journey has been affected, check our live map here.

Can you tell me more about the incident?

In this particular situation the fault has been confirmed as multiple 'Track Circuit Failures' caused by flood water. This means the signalling system is unable to automatically verify if the next section of track past the affected signal is clear.

The rail network is designed so that if a signal stops working, trains will stop before they reach it. Whilst this issue is ongoing, train crew will stop at the affected signal and contact the signalling centre to confirm their location. At this point the signaller will verbally authorise the driver to continue towards the next signal. This process adds significant time to every trains journey, which means fewer trains than usual can run on this route.

Check before you travel:
You can check your journey using the National Rail Enquiries real-time Journey Planner

Twitter:
If you would like to follow this incident on Twitter, please use #Swanwick

Compensation:
You may be entitled to compensation if you experience a delay in completing your journey today. Please keep your train ticket and make a note of your journey, as both will be required to support any claim.