Engineering work is taking place between Didcot Parkway and Chippenham / Bristol Parkway, closing all lines.

Buses will replace trains between:

• Reading and Swindon
• Didcot Parkway and Swindon
• Swindon and Bristol Parkway
• Swindon and Chippenham / Bath Spa

Trains that usually run between London Paddington and Bristol Temple Meads / Swansea / Carmarthen will be diverted to run via Newbury (not calling), and will be retimed throughout.

Trains that usually run between London Paddington and Cheltenham Spa will run between Swindon and Cheltenham Spa only.

An hourly service will run between London Paddington and Reading, calling at Slough.

An amended (2 hourly) service will run between Chippenham and Westbury.

At Reading, most diverted trains from London Paddington will pick up only, and most diverted trains to London Paddington will drop off only.

At Bristol Temple Meads, most diverted trains from London Paddington will drop off only, and most diverted trains to London Paddington will pick up only.

Check before you travel:

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

Replacement Bus Travel Advice:

For helpful advice if you need to travel on a rail replacement service, including accessibility and bicycle information, please use our Rail Replacement Services page.

You can find the pick-up and set-down location of rail replacement services by checking station signage or by searching for your station on our Find a Station page.

Please be advised that replacement vehicles may be busier than usual, and you should allow extra time for your journey.