There is a fault with the signalling system at Welwyn Garden City. As a result of this, trains may be delayed by up to 5 minutes.
This is expected to continue until 12:30.
Customer Advice
Great Northern and Thameslink have been advised of a fault with the signalling system.
This means trains will be delayed, as they are guided over certain signals by the signalling team. Delays of around 5 minutes can be expected.
Please continue to travel as normal, and check journey planners prior to departure.
Can you tell me more about the incident?
In this particular situation the fault has been confirmed as a 'Track Circuit Failure'. 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 time to every train's journey, which means services can experience short delays.
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 #WelwynGardenCity
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.
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