A fydd y trenau ychwanegol a'r amserlen estynedig a amlinellir ar gyfer gemau ail gyfle Euro 2024 Cymru yn cael eu hehangu i bob digwyddiad chwaraeon mawr?
Wedi'i ateb gan Y Dirprwy Weinidog Newid Hinsawdd | Wedi'i ateb ar 15/03/2024
Transport for Wales will work with partners to consider what additional services and increased capacity are necessary to support major events such as concerts and sporting events in Cardiff.