4 self-driving buses tested in Shenzhen

Four self-driving buses were tested on public roads in Shenzhen, Guangdong province, on Saturday. It was believed to be the first such live test in the world.

Each bus looks like a normal one. There's even a driver in position for safety. But the new buses are steered automatically along designated routes without a driver's hands ever touching the wheel.

They can automatically avoid pedestrians, speed up, slow down, make an emergency stop, change roads and navigate traffic lights.