2013/9/16 Russ Nelson <nel...@crynwr.com> > Martin Koppenhoefer writes: > > there are also other approaches in the pipeline (for years actually), > > sensor networks in the cars, > > New York City is surrounded by bridges and tunnels that practically > require you to have an E-ZPass. They have transponders which will read > your E-ZPass just for identification purposes. They use that > information to report on congestion within the city. According to the > maker of the transponder, they keep a hash of the identification > number, and throw it away as soon as they have calculated the speed. >
yes, based on road infrastructure there are also other systems already in use. In Italy there is a camera based system called "tutor" which does number plate recognition on motorways to calculate the individual average speed with the scope of issuing speeding tickets, and they also claim that they'd delete the data as soon as they can see that you didn't drive too fast ;-) cheers, Martin
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