Adrian, you're still making assumptions about how people are driving based on the now discredited and faulty propaganda expunged by the Camera partnerships that doesn't match up with the stats presented by the DfT themselves now they've been exposed by the UK Statistics Authority and forced into admitting the truth.
The official government figures released this year clearly show that accidents where 'breaking a speed limit' (which is the only function of a speed camera) is a cause is responsible for less than 3% of collisions and accidents on Britains roads.
So where you say "Why don't WE all calm down a bit and stop feeling the need to drive everywhere at top speed" the simple answer to that is that we're not.
The public aren't being fooled anymore and they understand the black arts being exploited by the partnerships.
For example, if you want to know why accidents reduce at camera sites, don't look up at the camera, look down at the nice new very expensive high grip road surface that now replaces the worn out super slippery shiney stuff that caused the accident hot spot in the first place. The camera is actually irrelevant.
It's a con, it has always been a con and it always will be a con, this isn't speculation, it's been exposed and the genie is out of the bottle and it isn't likely to be put back in.
Meanwhile, the millions spent on these now obviously totally pointless partnerships isn't being spent on 'real' policing with over 20% of our traffic police missing with some areas seeing a reduction in patrols over up to 80% and therefore the number of people killed by hit and run (people who shouldn't be on the road in the first place), drunk and drugged drivers are on the increase.
The only thing that remains is for the authoritys to confess they've been conned into this wild goose chase and have been massaging the figures to support the incompetence and scrap the camera project as an abject failure which the majority of people reallise it is anyway.
Just like PCOS (plastic police) the camera project was a 'bean counters' idea of how to cut costs on real policing and it simply didn't work.