The rules can be quite burdensome. New York to Montreal is about 7 hours at regulated speed, over a well-maintained, straight highway through thinly populated

The rules can be quite burdensome. New York to Montreal is about 7 hours at regulated speed, over a well-maintained, straight highway through thinly populated territory, with very little traffic for those leaving at 5am. A good driver, in a proper car, with good weather, can easily and safely make the trip in less than 4 hours. That same driver will be well below the speed limit in bad conditions. I recently saw a half-dozen police cars on that trip, all in a 200 mile stretch, on a fine early Saturday morning. They weren't out to ensure the safety of the traffic. The essence of safety is situational judgment. And traffic law is already a matter of discretionary enforcement, on US highways police routinely ignore speeds up to 10mph over the limit. That discretion should be further deployed to spot and cite unsafe drivers: weavers, passing-lane congesters, bad-weather speeders, right-lane passers. But there is more work and less revenue in that, isn't there?