Erbyn 2023, bydd 95 y cant o'r teithiau'n cael eu gwneud ar 148 o drenau newydd sbon, gyda thros eu hanner yn cael eu hadeiladu yng Nghymru, a bydd oedran cyfartalog y fflyd yn cwympo o 25 oed i 7 oed erbyn 2024. Bydd y trenau newydd yn gwella ansawdd ac awyrgylch y cyfleusterau i deithwyr. Rydyn ni wedi ymrwymo i sicrhau bod hynny'n cynnwys seddau cyfforddus.
By 2023 95 per cent of journeys will be made on 148 brand new trains, over half of which will be built in Wales, and the fleet average age will drop from 25 years now to seven by 2024. The new trains will offer an overall improvement to the quality and ambience of passenger facilities compared to the current fleet. We are committed to ensuring that this includes comfortable seats.