"Mae adolygiad o'r bôn i'r brig Keith Williams o reilffyrdd Prydain yn gyfle i ail-lunio'r rheilffordd a chreu'r rhwydwaith trafnidiaeth gyhoeddus integredig sydd ei angen ar Gymru. Ein disgwyl yw y bydd adolygiad Williams yn amlinellu llwybr clir ar gyfer rhagor o ddatganoli i Gymru.
“The imperfect devolution settlement is the root of many of the problems with our railway. The ongoing lack of infrastructure enhancement investment limits the capacity for new services, restricts the speeds of new trains, and fetters our ability to open the new stations we want to see. When we have intervened, we have done so using devolved budgets.  We shouldn’t forget that it was Welsh Government funding that lead to the reopening of the Ebbw Branch line and not the owner and funder of the infrastructure.