I’m not going to say that sort of thing doesn’t happen, they undoubtedly do, but in places where the rules don’t permit speeding, just because everyone else is, the problem self corrects. If too many motorists exceed the limit, the police have a field day ticketing as many as they can, and the situation reverts to people driving at the limit.

That does take setting the limits appropriately, constant enforecement that can be scaled up, a certain margin of error being accepted so everyone doesn’t have their eyes glued to the speedo, and the understanding and acceptance from motorists that the rules are fair and there for a reason. Absent any one or more of those, and things will inevitably turn into a racetrack again. Fortunately, much of the management and enforcement is usually local, so political pressure applied locally can often help correct issues.