A fault with the signalling system at Radlett means some lines are currently closed. Asa result, trains running between London St Pancras International and Luton may be cancelled, delayed by up to 20 minutes or revised.
Disruption is expected until 20:00.
Customer Advice:
East Midlands Railway
Trains running through the area between Luton and London St Pancras International will be delayed, some trains will be able to divert around the affected line, due to congestion this will add up to 20 minutes delay.
This will also affect our departures from London St Pancras International, due to the late arrival of services into London St Pancras International.
At present East Midlands Railway are expecting the problem to be fixed in the next hour. As soon as the problem is fixed their priority will be to get trains running to their advertised times again.
How do I get where I need to be?
You should continue to travel as originally planned however your journey may be delayed.
Thameslink
There will be delays to trains running through Radlett this evening, as there is a fault with the signalling system in the area. Please allow 20 minutes extra for your journey, and check station screens and planners for the latest information for your train.
Planning your journey:
Live departure boards can be found here.
You can view a live map of the network here.
Can you tell me more about the incident
Your journey is likely to be disrupted by a complete failure of the signalling system in this area. The signals on the affected part of the network will have changed so that they are only showing red lights to drivers. This means that trains are unable to travel forward on any line. Thameslink won't be able to provide you with a train service at the moment.
The scale of this issue means that it could be a challenge to give you an estimate for the delays. Thameslink are working closely with Network Rail, who manage the signalling system, so that they can get more details. Their staff will be investigating as quickly as possible.
Complete signalling failures can be caused by a number of different problems - for example, power issues, cable faults or significant weather events. Sometimes there can be multiple faults which contribute to the same incident. As this type of failure is so disruptive, fault-finding and repair work will be given a high priority.
Check before you travel:
You can check your journey using the National Rail Enquiries 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.