When there are new roads being built, how do navigation systems like Waze or Google Maps know about them? How do they add the roads? Do they add them manually or is there some smart way?
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Gis data is compiled and updated. But yeah, in a city with lots of new and continuous construction, the lag between the data updates and the speed at which roads are built and closed is pretty obvious so they don’t really “know” immediately, someone has to survey and update the maps.
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