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How satnav maps are made

nk497 (1345219) writes | about 2 years ago

Google 0

nk497 writes "Satnav firms go to great lengths to keep their maps up-to-date. This feature reveals exactly how TomTom, Google, OpenStreetNav and NavTeq ensure their databases are accurate with millions of updates a day from their own mapping cars, tracking systems on third-party fleets, and user data — and shows which method leads to the most accurate satnav system."
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