I think in safe streets advocacy, we have a knee-jerk tendency to say that people speed for just one reason — because they can. But we actually make it impossible for cars to break limits, we have to sweat the psychology of individual drivers. Which, it turns out, is *all over the map.*
usa.streetsblog.org
The Five Types of Speeding Drivers — Streetsblog USA
It's easy to jump to conclusions about why so many drivers continuously break speed limits, whether you assume they just can't help it or just don't care about anyone but themselves.