Future engineering work

PAGE LAST UPDATED: 23/04/2018 22:21. Update now

See details of routes affected by planned engineering works, including when they take effect, maps of the affected area, alternative timetables, advice for alternative travel and real-time updates.

Revised night service in the Bristol area from Monday 22 until Thursday 25 January

Start date
22/01/2018  00:00
End date
Route affected

Between Cardiff Central and Bristol Temple Meads

TOC(s) affected
Great Western Railway

Engineering work is taking place between Patchway and Severn Tunnel Junction and between Bristol Parkway and Didcot Parkway, closing some lines overnight.

High Speed Trains (long distance)

Late evening trains between London Paddington and Cardiff Central / Swansea will divert, and are unable to call Didcot Parkway and Swindon. Trains will also terminate at Neath. Road transport will run from Didcot Parkway to Swindon and Bristol Parkway.

Late evening trains will be unable to run between Bath Spa, Chippenham and Swindon. Road transport will be in operation to help with journeys.

Some trains to Oxford and Worcester Shrub Hill will call additionally at Didcot Parkway.

Additional trains will be able to run from Chippenham to Bristol Temple Meads / Bath Spa.

Bristol Temple Meads

Trains between Cardiff Central and Bristol Temple Meads will be retimed to run up to 10 minutes later between Patchway and Severn Tunnel Junction.

On Thursday night, the 23:20 Bristol Temple Meads to Frome service will terminate at Westbury. A bus will be provided between Westbury and Frome.

Check before you travel:

You can plan your journey using the National Rail Enquiries Journey Planner

You can find the location of your bus replacement by typing in your station here.


Non folding bicycles are not allowed on rail replacement bus services at any time. Folding bicycles are allowed if fully folded. For more information, please see here.

Project Information:

The Great Western Route Modernisation project is the biggest investment in the Great Western railway since Brunel built it more than 150 years ago. Modernising the route will improve the experience of everyone who uses it and stimulate economic growth in the South West and beyond.

Network Rail are electrifying one of Britain's oldest and busiest railways, providing greener, more reliable journeys and improving connections across southern England and South Wales: London and Bristol, including Cardiff, Newbury and Oxford. This project is also part of the London Railway Upgrade Plan, creating new connections and increasing capacity in peak hour by 30%.