Buses replace trains between Cardiff Central and Bridgend via Pontyclun Saturday 19 and Sunday 20 September
Engineering work details
Starts Saturday 19 September 2026 to Sunday 20 September 2026
Train operators affected
Route(s) affected
Great Western Railway between London Paddington and Bristol Parkway / Swansea / Carmarthen, and also between Bristol Temple Meads and Swansea
Transport for Wales between Cardiff Central and Swansea / Milford Haven, between Ebbw Vale Town and Bridgend, between Manchester Piccadilly and Carmarthen / Milford Haven
Description
Engineering work is taking place between Cardiff Central and Bridgend, closing all lines via Pontyclun.
Great Western Railway:
Trains will not run between Cardiff Central and Bridgend via Pontyclun.
An amended and reduced train service will run between Cardiff Central and Bridgend via Barry (not calling), with extended journey times.
Trains between London Paddington and Swansea will run a reduced service of 1 train per hour.
On Saturday, the following services will be amended:
The 03:56 Swansea to London Paddington service will depart earlier than usual at 03:54, diverting as above
The 06:54 Swansea to London Paddington service will start from Bristol Parkway at 08:25
The 07:03 Bristol Temple Meads to Swansea service will start from Bristol Parkway at 07:03, calling at Newport and Cardiff Central before diverting as above.
The 19:18 London Paddington to Swansea service will terminate at Bristol Parkway
On Sunday, the following services will be amended:
The 09:55 Bristol Parkway to London Paddington service will depart earlier than usual at 09:34
Transport for Wales:
Trains will not run between Cardiff Central and Bridgend via Pontyclun.
An amended and reduced train service will run between Cardiff Central and Bridgend via Barry, with extended journey times.
On Saturday, these diversions will affect trains that usually run to / from Penarth, and to / from / via Barry:
2 trains per hour will operate between Cardiff Central and Barry Island
2 trains per hour will operate between Coryton and Penarth
Trains between Caerphilly and Penarth will not run
4 trains per hour will operate between Cardiff Central and Rhymney / Bargoed, with some trains being retimed
1 train per hour will operate between Cardiff Central and Bridgend, calling at Barry, Rhoose Cardiff International Airport, Llantwit Major and Bridgend only. Every two hours, these trains service will extend to run to / from Swansea
Trains between Maesteg and Cardiff Central only run between Maesteg and Bridgend
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 drop-off 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.
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