via gizmodo.com
Beneath every Google map is a goldmine of data that's hidden from the user; a series of logical statements about places and highways that help provide correct directions, can tell you when traffic's bad, and generally makes the service so much more useful than a paper counterpart.
The Atlantic's Alexis Madrigal was lucky enough to be shown exactly what goes on behind the scenes at Google to make the maps as good as they are. Fortunately he's written about what he saw when he went to visit the guys that work on Google's "Ground Truth".
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