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Amended late night Transport for Wales trains in the Cardiff Central area from Monday 6 to Thursday 9 April 

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Engineering work details

Starts Monday 06 April 2026 to Thursday 09 April 2026

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Train operators affected

Route(s) affected

Transport for Wales between Cardiff Central and Aberdare / Swansea / Milford Haven / Fishguard Harbour

Description

Engineering work is taking place in the Cardiff Central area, closing some lines overnight from Monday evening until Friday morning.

As a result, the following trains will be diverted to run via Barry, extending journey times by up to 25 minutes:

  • The 20:36 Milford Haven to Cardiff Central service

  • The 21:46 Fishguard Harbour to Cardiff Central service

  • The 23:21 Cardiff Central to Swansea service

Additionally, the 22:51 Aberdare to Cardiff Central service will not run via Fairwater. A replacement bus, connecting with the train, will run from Radyr to Cardiff Central calling at stations via Fairwater.

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.

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