That is not new. And it's still not enough, because it's not impossible to reconstruct someone's route if they drive in areas where they are the only ones (or a

That is not new. And it's still not enough, because it's not impossible to reconstruct someone's route if they drive in areas where they are the only ones (or among the few) to send segment data. That's why you need to do more work, as in two of Google's patents: https://patents.google.com/patent/US8972187B1 https://patents.google.com/patent/US8972187B1 https://patents.google.com/patent/US9794373B1 https://patents.google.com/patent/US9794373B1