Heathrow (Third Runway)

I recognise the advantages of taking a line all the way to Scotland, but we have to be realistic about what we can promise, and we have to build such systems in stages. The history of our transport system demonstrates that we cannot deliver the whole lot all in one go. It is clear that constructing, and committing to, the link that we have proposed will be a major step along the road to delivering that wider- scale network, one day including, I very much hope, a full link between Scotland and London.