Driverless public transportation may not be seen first in Google’s home of Mountain View, California, or in London where rapid transit first began. Cities like Lausanne, Switzerland and Zhengzhou, China are already testing driverless public transportation vehicles.

In Trikala, Greece, a robotic bus has been taking passengers — 10 at a time — around its city route for free. A six month trial of the driverless bus technology, the first in the world, has been successful: No accidents and positive reviews. National Geographic has the details in the video above.

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