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Buses replace trains between Cardiff Bay / Cardiff Central and Radyr via Cardiff Queen Street on Sunday 22 March  

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Engineering work details

Starts Sunday 22 March 2026 to Sunday 22 March 2026

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Train operators affected

Route(s) affected

All Transport for Wales routes via Cardiff Queen Street

Description

Engineering work is taking place between Cardiff Queen Street and Heath High Level, closing all lines.

Trains between Cardiff Central and Treherbert / Aberdare / Merthyr Tydfil will be diverted via Farirwater (City line).

Rail replacement buses will operate between:

  • Cardiff Central and Radyr via Cardiff Queen Street

  • Cardiff Central and Caerphilly

  • Cardiff Bay and Radyr

Your ticket will be accepted at no extra cost on Cardiff Bus route 6 and between Cardiff Queen Street and Coryton.

Check before you travel:

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

You can plan your journey on buses by using use the Traveline website

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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