Faint o'r gwasanaethau a gafodd eu gohirio a'u canslo yn 2024 yr oedd Trafnidiaeth Cymru yn uniongyrchol gyfrifol amdanynt?
Wedi'i ateb gan Ysgrifennydd y Cabinet dros Drafnidiaeth a Gogledd Cymru
| Wedi'i ateb ar 29/01/2025
This information is available in the public domain. The Office of Rail and Road (ORR) publish quarterly and periodic (4-weekly) statistics on punctuality, reliability and causes of delay for passenger trains operating on the mainline network in Great Britain, found here: Passenger rail performance | ORR Data Portal.