I'll vote for that, if true and applied with common sense
Didn't Tony Blah promise to do something similar before going down the 'power corrupts' and 'I know best' route, once we elected him?
Personally, I'm very happy with 20mph around schools, but it should be when the kids are arriving and leaving, not the rest of day and all holidays! Over control breeds contempt and failure to comply.
The 30mph limit is necessary, but enforcing it is not something a camera should do. It makes no one safer, unless you spend your life in the few yards before the camera and catch zone that follows.
The biggest factors I see in accidents or (much more often) near misses are (1) Distraction (2) Driving too close (3) The idea that driving is so easy, it can be done with eyes closed and/or brain in power save mode.
As an example, there are far too many people that try to climb in another car boot and far too few police cars to point out the error of their ways.
If you drive 50 miles on a motorway and fail to spot at least one bad driver, who warrants pulling over and warning, then you'd have to be someone that's too busy texting a friend and never looking in a mirror, least of all one that reflects your image.
Speed? Well, it can play a part, sometimes, but it's not the biggest failure point.
That'd be politicians and authorities, where the rise of the (apparently) squeaky clean politician and the fall of common-sense-man is a serious loss.
Speeding is an easy thing to capture, graph, point at and spout about, but it's like lying, it comes easy to some, hard to others, but make no mistake, it's practised by almost everybody.
We just need the driving fools of this land to know what's safe and what's stupid. A flash & fine can't do that. A policeman writing reports for politicians can't do it either.
Oh, nearly forgot...Congestion charge? Read TAX.
Rule one: If money is taken from people by authority, it's a TAX.