Engineering work is taking place between Cardiff Central and Severn Tunnel Junction until 16:20, closing all lines.
CrossCountry:
Buses will replace trains between Cardiff Central and Gloucester.
Great Western Railway:
Buses will replace trains between Cardiff Central and Bristol Parkway. Services between London Paddington and Cardiff Central will run at a reduced level, and will only run between London Paddington and Bristol Parkway.
Transport for Wales:
It is not yet known how Transport for Wales services will be affected by this engineering works.
Check before you travel:
If you are travelling with CrossCountry or Great Western Railway, you can plan your journey using the National Rail Enquiries Journey Planner
Replacement Bus Travel Advice:
You can find the location of your bus replacement by checking station signs or by searching for your station on our station information pages.
Bicycles are not allowed on rail replacement bus services at any time, unless fully folded. More travel advice for your replacement bus journey is available by selecting the Train Operating Company you are travelling with here.