gmball: Speed camera vans are nothing more than revenue gathering devices. I'd be surprised if they have any effect on reducing the road toll.
You only have to be in the flow of traffic to notice everyone slowing down and then speeding up again once past the camera.
Having a disguised camera van seems completely pointless, no ones going to slow down, having nil effect in reducing the road toll, plus to add to the cheek, I seem to recall the North Western motorway having areas of reduced speed to 80kmh, no doubt that's where the van is hiding.
i read a comment the other day somewhere.
if there is zero tolerance for speeding why is there not zero tolerance for:
alcohol
downloading
child violence
adult violence
immigration
[insert anything you like]