I don't want to make it sound like I'm obsessed with trains, but given what I said below I thought I should put on record I had a good train journey down from Edinburgh this week - and, for the second week in a row, the train was early, taking under 4hrs 10 minutes. That is a reminder how even with the existing track and trains, 4 hour train journeys from Edinburgh to London are quite possible - and even without investing in a new high speed rail route for the entire way, journeys of 3 and a half hours are quite feasible. And a brand new high speed rail route could bring the journey time down under 3 hours.
That's worthwhile remembering when we see the chaos at the new Terminal 5 this week. For a whole host of reasons, encouraging a shift from air to rail for domestic journeys in the UK makes so much sense. That's an issue I've been involved with in Westminster over the years; and I think it's high time to give it another push, and I'm going to try and do that.