A wnaiff y Gweinidog gadarnhau a oes cynlluniau i ddiweddaru amserlenni trenau i gynnwys mwy o wasanaethau cynnar a hwyr sy'n rhedeg i ac o Gaerdydd ar reilffordd Treherbert?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 06/03/2024
The transformation of the Treherbert line will enable more services every hour between 05:34 and 00:05, along with the introduction of brand-new trains as part of our £800m investment in rolling stock.