the point is that speed doesn’t cause the accident, only makes it more severe. it doesn’t change casualty rates materially. what we want to reduce is the accide

the point is that speed doesn’t cause the accident, only makes it more severe. it doesn’t change casualty rates materially. what we want to reduce is the accident in the first place, and reducing speed doesn’t do that, only increasing driver attentiveness does that. once we better solve the attentiveness issue should we consider severity and speed’s contribution to it.