Here’s how Google Maps knows when there is traffic | International News Live Blog

https://internationalnewsliveblog.wordpress.com/2017/01/11/heres-how-google-maps-knows-when-there-is-traffic/

Google Maps is a very useful tool for navigating your way through traffic and quickly getting you to your destination. But how it works may creep you out. http://internationalnewslive.com/heres-how-google-maps-knows-when-there-is-traffic/