Both lines a mix of old railways and new construction to Tram type standards, Cardiff Depot Excepted has not yet branched out onto roads for their Docklands extensions, I think there are still arguments going in about route, money you know the usual stoppers for any new rail infrastructure projects. I read today in Rail that the Fawley project has been cancelled due to alleged bad value to taxpayers, those local ones will need to manage as best they can on busy substandard roads or on busses stuck in the same traffic. Beeching reversal appears to be dead n burried now.