A good train service is expected to run this morning and customers are advised to travel as usual.
There is currently a fault with a piece of equipment at the Network Rail Marylebone Signalling Centre, which means that very little real-time train running information is reaching any public facing information systems.
This means that many computer systems that rely on up to date train running information are not updating, and may show trains as 'delayed' when they are not. This can affect any trains running anywhere between Aylesbury Vale Parkway, Banbury or Oxford Parkway and London Marylebone.
The problem is affecting many systems including our station screens (and announcements) as well as all Apps and websites that show live train information.
We apologise for any confusion and frustration that this technical problem will cause you. Our colleagues at Network Rail are working to fix the issue as quickly as possible.