Bydd gwasanaethau Metro'r De yn cynyddu i bedwar gwasanaeth yr awr i bob un o orsafoedd blaenau'r cymoedd i'r gogledd o orsaf Stryd y Frenhines Caerdydd; o 2022 i Aberdâr, Treherbert a Merthyr, ac o 2023 ar gyfer gwasanaethau Rhymni. Gan weithio ar draws y Llywodraeth, rydym am estyn cangen Coryton i ysbyty newydd Felindre, a wrth wneud, cynyddu'r gwasanaethau ar y lein i 4 yr awr.
The solution for the South Wales Metro will increase services to four services per hour to each of the heads of the Valleys north of Cardiff Queen Street; from 2022 for Aberdare, Treherbert and  Merthyr, and 2023 for Rhymney services. Working across government, we aim to extend the Coryton branch to the proposed new Velindre hospital, and in doing so increase services on that line to 4 per hour.