Future engineering work

PAGE LAST UPDATED: 21/03/2019 01:46. 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 08:00 Swansea to London Paddington service on Sunday 23 September

Start date
23/09/2018  00:00
End date
Route affected

Great Western Railway between Swansea and London Paddington

TOC(s) affected
Great Western Railway

Engineering work is taking place between Swansea and Baglan, closing some lines.

As a result, the 08:00 Swansea to London Paddington service will be amended to start from Cardiff Central. A replacement bus will run from Swansea to Cardiff Central to connect with this service. A second bus (which will not connect with the train) will run from Swansea to Cardiff Central via Neath, Port Talbot Parkway and Bridgend.

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 checking station signs or by searching for your station on our station information pages


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:

You can read more about engineering work and why it is necessary.