Future engineering work

PAGE LAST UPDATED: 25/03/2018 06:20. 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.

Amended service between London Paddington and Reading on Sunday 28 January

Start date
28/01/2018  00:00
End date
Route affected
Download map of route afected

'High Speed' services between London Paddington and Swansea / Cardiff Central / Bristol Temple Meads / Hereford / Worcester / Exeter St Davids / Plymouth / Penzance

'Thames Valley' services between London Paddington and Reading / Didcot Parkway

TOC(s) affected
Great Western Railway

Engineering work is taking place at various locations between London Paddington and Reading, closing 2 out of 4 lines on sections of the Great Western Railway at Slough, Maidenhead and Hayes & Harlington.

Thames Valley (local services)

On Sunday morning until 08:00, early morning trains between London Paddington and Reading will terminate at Maidenhead. Buses will run between Maidenhead, Twyford and Reading.

All day Sunday, local services will be re-timed by a few minutes between Slough and Didcot Parkway.

High Speed (long distance services)

All day Sunday, most long distance services will be re-timed to arrive at London Paddington up to 5 minutes later than usual.

Check before you travel:

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


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%.