Reduced service between Bognor Regis and Barnham expected until 10:15 

Route(s) affected

Between Bognor Regis and Barnham / Horsham / London Victoria

Description

A fault with the signalling system between Bognor Regis and Barnham means some lines are blocked. As a result, some trains between these stations will be cancelled.

Disruption is expected until 10:15.

Customer advice:

If you are travelling between Bognor and Barnham you can travel on your normal route, but services will be disrupted.

You will need to allow at least an additional 15 minutes to complete your journey.

Please talk to station staff, look at the information boards or check your journey planner for the most recent information.

How are we changing our service?

While this disruption is ongoing, we will be making the following changes to services:

• Trains that normally run between Bognor and Barnham will have a reduced service

Planning your journey:

For help planning your journey, check live departure boards, view a live network map or see alternative route guides.

If you’re travelling within London, you can use the TfL Journey Planner.

Stay up to date on the move with Southern’s WhatsApp channel. Live updates are available Monday to Friday, 07:00–21:00.

Can you tell me more about the incident?

Trains are likely to have some delays due to a fault with a signal in this area. In this case, the signal is unable to show the normal coloured light indications to drivers, and instead, it's showing a red light. This means drivers have to stop at the signal and gain verbal instructions to continue. Your journey will unfortunately take longer as a result.

Railway signals are designed to warn drivers that they have to stop because the system can't yet confirm that the route ahead is clear. In most places, the signalling system will show a green light, or aspect, when the track is clear for a long distance ahead, and drivers will then be shown one or two yellow lights to warn them when they are approaching a red signal. This means that they can anticipate the amount of braking that's required to stop before they reach another train or any form of problem on the line.

Signalling runs on "fail safe" principles, so if the signals can't step through the usual colours, they will instead show a more restrictive colour - for example, red instead of green. This means drivers will have to stop, but in fact, the route ahead may still be clear. This leads to delays.

The signalling system is maintained by Network Rail, and we're working closely with them to diagnose the fault and make sure it is fixed as quickly as possible.

Check before you travel:

You can check your journey using the National Rail real-time Journey Planner.

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.