I don't agree that speed is "one of the three main causes" of road deaths. Innappropriate speed is certainly a killer. I would feel a great deal safer though, if the police would deal with unsignalled and unnecessary lanes changes, unsafe pulling out from intersections, barging into spaces that don't exist prior to the barging, slowing down to 40 km/h in the middle lane of SZR/Emirates Road while trying to work out if this is the right exit, etc etc etc, rather than just putting up the odd mobile speed camera.