Cycle campaigning

London isn't Hull. I've never been there's but my experience of provincial towns is that motorists obey the speed limits and wait till lits go green before setting off. That never happens in London.

There are already ANPR cameras all over London. There have been for years. They are only effective against people who diligently register cars in their own name, and the type of person who drives without insurance doesn't do that. And no camera can detect erratic driving or tailgating. Average speed cameras cannot work in London because the average speeds are about half of the speed limits anyway. To actually catch anyone going at an average of over 20mph between two points there would have to be more cameras than there are lamp posts, and not only would that be an eyesore, there will never be anything like enough money to pay for them. Which means that the 20mph zones will be unenforced or enforced only by anti cyclist measures such as speed humps or chicanes.

Believe me, London drivers are not uniquely aggressive. The new ASSET cameras detect tailgating and other dodgy behaviour:

http://cars.uk.msn.com/news/articles.aspx?cp-documentid=155191051

And it has been tried in London:

A review of 20 mph zones in London found that there was an average reduction in casualties of 42%, compared with an 8% reduction in surrounding areas. Although injuries amongst cyclists reduced at a lower rate than other users (only 17%), this does not take account of the fact that cycling levels increased much more than for other modes.

http://www.ctc.org.uk/DesktopDefault.aspx?TabID=5176