I agree, and I very much appreciate what the right hon. Lady said in her speech.
There are measures to deal with environmental damage. I mentioned floating slab track to deal with vibration, but there are also noise barriers disguised by foliage and tunnelling where necessary. All sorts of things can be done: they cost a bit extra, but they make the project much more acceptable. Getting the line right in the first instance is absolutely fundamental, and many of my good friends tell me that the line is not right, especially north of Birmingham, but also between London and Birmingham. All sorts of details need to be argued,
which will take the Committee a long time. HS2 is a much bigger project than Crossrail, and the Crossrail Bill Committee took two years. We met every week, and there were lots and lots of petitions. There will be many more for HS2, so we are looking at a big job.
The right hon. Member for Chesham and Amersham (Mrs Gillan) mentioned speed, and recently there was talk about reducing the maximum speed from 250 mph to 183 mph—or 300 kph—and going at the speed of HS1. It was an arbitrary decision—“Oh well, let’s just reduce the speed”—which changes a lot of suggested journey times. I have spoken in the House about journey times, and criticised the project in that regard, as it seems that someone can just make a quick decision—“Oh well, we won’t go there. We’ll decide to change the speed.” There is a problem with high-speed trains, which cannot go round tight curves as they would fall off the track. Curves have to be gradual and of a large radius, which causes all sorts of problems. That does not apply to trains on standard rail, with a speed of up to 125 mph or 135 mph.
Raising the speed from 300 kph to 250 mph demands a tremendous increase in energy. Energy costs are much greater at higher speed, and extra emissions from power stations required to drive electric trains are disproportionately increased. Optimum railway speeds are much lower—