Heisenberg, I've never been a great lover of centralisation but if I could vote on 1 thing that should never be de-nationalised it would be the railways. It never made sense and it still doesn't, and any party that promises to re-nationalise it for the good it will do and not just for party political reasons would get my vote. I love train travel and if the service was good enough I'd choose it over driving every time. But I'm afraid its a big IF.
I think the new metro system is essensial and now is a good time to start the work as the train numbers are so greatly reduced.