Somewhat off-topic, but regarding automatic tracking for speeding, there was a system recently put in place on Turkish highways. Toll roads have booths at each

Somewhat off-topic, but regarding automatic tracking for speeding, there was a system recently put in place on Turkish highways. Toll roads have booths at each entry and exit — so they can run plate recognition and fine you if your average speed between two booths exceeds the limit (eg if you travel 130 km in less than an hour on a 120 km/h limited road).