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Line Closures in place to deliver Cardiff Bay Line Transformation

12 May 2023 · Transport for Wales


What work is being carried out?


Transport for Wales will be building a new two-platform station in the north of Butetown, as part of the biggest upgrade to public transport in the area for a generation.

The existing Cardiff Bay station will also get a second platform, as well as new signage, customer information screens and other enhancements.

Installation of a new track will allow faster and more frequent services using brand new tram-trains, with a new timetable set to be in place from 2024.

We’ll also be installing the overhead line equipment (OLE) that will power the smoother, faster and greener tram-trains. The OLE will be installed between the new Butetown station and Cardiff Bay station, but the new trains will run on battery between Cardiff Queen Street and the new Butetown station.

Improvements to the Bay line will commence in early 2023 and complete around 2024.

What benefits are there for Butetown and the Bay?


Metro will help to support economic growth across the region by improving the connections across South Wales and beyond. It’ll mean faster, more frequent and better journeys for passengers.

The brand new tram-trains that will service Metro are electric and produce less CO2 than the trains currently in service. The new trains are also quieter for both those onboard the train and those living close to the railway. Better, more reliable public transport will also mean that less people will need to use their cars, easing the strain on the congested roads around Cardiff and surrounding areas.

Our new timetable and tram trains will improve connectivity for local residents by having:

  • 3 carriage trains (instead of 1 carriage) with 126 seats and capacity for 256 people
  • 6 trains per hour
  • Double track

Will the Cardiff Bay Line be closed?


To allow for Transport for Wales to carry out large amount of works as part of the South Wales Metro, we will be closing the Cardiff Bay Line from Cardiff Queen Street to Cardiff Bay on following dates:

  • Sunday 14th May to Sunday 28th May
  • Sunday 11th June to Sunday 25th June

During these closures, ticket acceptance on Cardiff Bus services 6 (Baycar) and 8 will be accepted.