Driverless taxis are a common sight in Chinese cities these days. So, increasingly, are delivery drones. But to see one of the heaviest autonomous machines ever deployed, head to the grasslands in China’s far north-east, to the Yimin coal mine, a giant hole in the earth spanning 42 square kilometres. Travel to the bottom and you will find around 100 lorries each capable of carrying 90 tonnes of coal—without a human in sight. Large black boxes filled with batteries sit where the driver’s cabins should be.
Zhao Yaozhong, a manager at Huaneng, the state-owned power utility that operates Yimin, says the deployment of driverless lorries has led to 120 workers being reassigned to posts outside the pit—thus removing them from the dust and danger of the mine. The vehicles also do far more work without a human driver. They run through the night and in poor weather conditions, and even change their own batteries. If all goes to plan, most humans will disappear from the pit over the next three years as another 300 autonomous lorries are added.
