Why can't we, with a more intelligent policy, actually have houses that are affordable, built at higher densities than they are at the moment and built on brownfield sites.
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I'm going to introduce you to a revolutionary thought - you can go slower and get there quicker. And that's to do with flow. As soon as you made it two lanes and brought in the 70 (mph) and 50 (mph), you got there quicker. It meant the flow of the traffic was better, there were less accidents, less deaths, I think that's an important factor.