The Welsh Government and Transport for Wales (TfW) has worked up ambitious multi-billion-pound investment projects to transform rail and integrated bus transport across Wales.
The emerging schemes, from the south to the north, as well as improved cross border services, would play a hugely supportive role in reducing carbon emissions.
However, as the majority of the rail network in Wales is not devolved it will required the UK Government to provide billions for them to to realised, and so helping to address massive under investment in rail enhancement projects in Wales going back decades.