The problem is the fact that the roads, and other public property, are equally owned by everyone. The speeder has just as much right to do whatever he wants on the road as anyone else. All of this is solved by making roads private property. Then you can place whatever restrictions on their use that you want. In the meantime, don't impede the man's right to use his property as he sees fit, unless he harms someone else.
So if I get this straight this is your position.
So as a group we aren't allowed to impose our will on 49% because that would be oppression if we collectively own the road, and that would be wrong. But a single person that owns it could impose his will on +99,9% of the population and that would be fine?