TIL that Google Maps calculates traffic by tracking how fast Android devices are moving on the road.

https://www.ncta.com/platform/broadband-internet/how-google-tracks-traffic/



Submitted March 02, 2015 at 02:21AM by lIlIlIIlIIIlIIIIIl http://www.reddit.com/r/todayilearned/comments/2xlgdl/til_that_google_maps_calculates_traffic_by/