Around 45% of rail fares are regulated, including season tickets on commuter journeys, some Off Peak Return tickets on longer journeys and some Anytime tickets.
Mae prisiau tua 45% o docynnau trên wedi’u rheoleiddio, gan gynnwys tocynnau tymor i gymudwyr, rhai tocynnau dwy-ffordd ar adegau tawel a rhai tocynnau Unrhyw Bryd.