Rydym felly wedi gofyn i Trafnidiaeth Cymru gydweithio â Network Rail, yr Adran Drafnidiaeth, a rhanddeiliaid eraill, i gefnogi'r gwaith datblygu sydd ar y gweill mewn ymateb i gyhoeddiad Llywodraeth y DU.
We have therefore asked Transport for Wales to work collaboratively with Network Rail, the Department of Transport, and other stakeholders, to support the development work underway in response to the UK Government’s announcement.