Delays between Welwyn Garden City and Potters Bar expected until 10:00 

Route(s) affected

Great Northern between Kings Lynn / Ely / Cambridge / Letchworth Garden City and London Kings Cross, and also between Welwyn Garden City and Moorgate

Thameslink between Cambridge and Brighton, between Welwyn Garden City and Sevenoaks, and also between Peterborough and Horsham

Description

A speed restriction over defective track between Welwyn Garden City and Potters Bar means trains must run at a reduced speed on some lines towards London. As a result, trains between these stations may be delayed by up to 10 minutes.

This is expected until 10:00.

Customer advice:

You can continue to travel as normal, however your journey may take an additional 10 minutes.

This is affecting services which run from:

• Peterborough to Horsham

• Peterborough to London Kings Cross

• Cambridge to Brighton

• Kings Lynn and Ely to London Kings Cross

Can you tell me more about the incident?

Following overnight engineering work, Network Rail have identified a defective section of track between Welham Green and Brookmans Park, located on the London bound 'fast' line.

Engineers have imposed a 20mph speed limit on trains passing over the affected section of track, and this is causing delays to some London bound services. Because trains are travelling at slower speeds, they may begin to queue behind one another. In severe cases, some services may need to be cancelled or revised to prevent delays from building up across the wider network.

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.