The cause was easy enough to identify: Data parsed by Kuhls and her colleagues showed that drivers were speeding more, on highways and on surface streets, and plowing through intersections with an alarming frequency. Conversely, seatbelt use was down, resulting in thousands of injuries to unrestrained drivers and passengers. After a decade of steady decline, intoxicated-driving arrests had rebounded to near historic highs.
… The relationship between car size and injury rates is still being studied, but early research on the American appetite for horizon-blotting machinery points in precisely the direction you’d expect: The bigger the vehicle, the less visibility it affords, and the more destruction it can wreak.
Here in Canada I’ve noticed we are starting to use cameras as well, the only issue is there are lots of signs before it is installed and lots of signs when it is installed. That way you know where you can speed and where you can’t speed, which is usually just 1 or 2 intersections of cameras… It seems like a small improvement but they are too easy to avoid, especially for locals. Imagine if a traffic cop had to walk down the road and put a little sign up that says “radar trap ahead” before doing any radar.
My town has mitigated that problem by putting a mobile camera just after the fixed camera. The sign for the mobile camera is hidden by the slow traffic, but they catch all the people who speed up just after the fixed camera
People are now afraid of speeding anywhere around the cameras