I was using at Google Earth, and used it to look at some directions when I noticed that program recommended that I take a right and drive down this road, then take a u-turn and drive past from where I turned originally, when I could've just simply taken a left instead.(adsbygoogle = window.adsbygoogle || []).push({});

Does anyone know how Google Maps uses finds directions for someone? And, why would the application recommend that I take an unnecessary route like this? Is the software, by any chance, open-sourced as well?

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# The algorithm used by Google Maps?

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