Melanie Burton/Reuters Rio Tinto is increasingly employing self-driving trucks at its Australia mines. The company’s Greater Nammuldi mine in Western Australia employs around 400 people, but also more than 50 trucks — including 300-ton behemoths the size of townhouses — with no driver at the wheel, the BBC reported. Despite being coordinated from Perth, some 1,000 miles away, they are improving both productivity and safety, a company manager said. Meanwhile, their former drivers have been successfully retrained on other equipment. According to some estimates, the number of self-driving haul trucks worldwide has about quadrupled in four years, and, while autonomous vehicles are still a rare sight on city streets — although that is slowly changing — the technology is already changing the economy elsewhere. |