Core Valley Lines Transformation (South Wales Metro)
Electrification and resignalling of the Valley Lines with new tram-trains and higher frequencies across the Cardiff city region.
- Sanction year
- 2019
- Sanctioned cost
- £1,000m
- Route / corridor
- Cardiff–Treherbert/Aberdare/Merthyr/Rhymney
- Sponsor / TOC
- Transport for Wales
Latest news & timeline
Dated updates from government announcements, Network Rail route plans, Parliament questions and official reports — newest first.
- No timeline entries published yet.
Frequently asked questions
+What is the current status of the Core Valley Lines Transformation (South Wales Metro)?
As of the latest published record, the Core Valley Lines Transformation (South Wales Metro) is at the "Under construction" stage.
+Has the Core Valley Lines Transformation (South Wales Metro) been sanctioned, and in which year?
Yes — the project was sanctioned in 2019.
+What is the estimated cost of the Core Valley Lines Transformation (South Wales Metro)?
The sanctioned or estimated cost on record is £1,000m.
+Where is the Core Valley Lines Transformation (South Wales Metro) located and who runs it?
It sits on the Cardiff–Treherbert/Aberdare/Merthyr/Rhymney. The train operating company / sponsor on record is Transport for Wales. It covers Wales.
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