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Four tiny, driverless buses are on trial in the Greek city of Trikala, the first of five European cities to introduce the automated transportation.<p>The vehicles are part of CityMobil2, an EU-funded research project that is staging tests of automated road transport systems with self-driving buses across Europe. Each bus can carry 10 to 12 passengers along the road at speeds of up to 20 kilometers an hour, around the same speed as a milk float, but faster than a golf buggy.<p>“I was saying…a bus without a driver, how could it be?,” asked one elderly woman who took a trip out one of the tiny buses. “But I really enjoyed it and had no problem. It’s like a regular bus. I will use it, since it passes through my neighborhood.”<p>The buses are electric, silent and non-polluting.<p>...<p>---