This seems to me to be a vexed question. I think that it is right and proper to invest in the rail network if it is going to reduce the number of cars on the road and therefore help to alleviate pollution. If the work creates British jobs, so much the better. However, I agree that it is an awful lot of money to spend on such a small length of track.
I think you are on to a very important point there Maisie !
Government after government have promised to ease the congestion on our roads by generating a better, cheaper and more efficient rail infrastructure, and after Beeching and his awful axe scrapped more than half of the lines that we had we are now seeing a desperate need for these lines expensively popping up everywhere.
That is all well and good if the railway systems that are produced are really affordable, efficient and not packed to the doors. They are in the main NOT and that is why many people and companies who might use the train for commuting and for recreational and tourism travel don't.
While we realise that the privatised and profit-driven TOCs are subsidised just about as much as the nationalised rail-services used to be this makes a nonsense out of private companies that are fragmented all over the country who keep raising their charges with the blessing of the government. Don't they realise that every time they raise the prices less people use the services and the income increases are as a result lost.
Sorry if I went on a bit about this, but it is one of my pet hates !