It’s been five years since the report ‘A Metro for Wales’ Capital City Region’ was published, which makes the case for a step change in our public transport system. Per kilometre, a rail line costs about the same as the same distance of motorway, yet it carries eight to 20 times more people. So, I’m keen to understand what work the Government has done to use the metro as a way of tackling modal shift and dealing with the congestion that we currently have on the M4 east of Cardiff.