This might make some interesting map engraves

https://labs.mapbox.com/labs/twitter-gnip/locals/#5/38.000/-95.000

people must take a lot of pictures from their cars, because you can see the major road systems in the dot patterns. this is DC.

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Interesting metric, thanks.

The data analyst said those aren’t specifically roads but connectors drawn when the same person took multiple photos close (didn’t say how close) to each other. The lines are thicker as multiple people do the same on the same tracks.

It makes sense they look like roads (& may be roads in fact) as most people travel whether by car or foot along roadways and people have pretty similar inclinations on what is photo-worthy.

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