A tax on transport is an interesting idea, but will people of Sunderland be happy paying for something that is not coming there way, same goes for other parts of Tyneside and Southern Northumberland.
As for County Durham, why should all of Co. Durham taxpayers stump up for something 95% wont benefit from, after all Co. Durham would only gain 2 or 3 stations.
I am personally in agreement with a tax on new transport links, but I guess i am part of significant minority