I don't recall who it is that said that, but it's still a win. People will start driving slower and more cautiously some time before the cameras ( not just in f

I don't recall who it is that said that, but it's still a win. People will start driving slower and more cautiously some time before the cameras ( not just in front of it, because they're probably not the only ones on the road and the drivers in front of them will need to do the same), in both directions, so you end up with tons of drivers driving more cautiously for a few km. Especially if you put the cameras in dangerous sections of the road, you can have a huge reduction in road incidents.