China debuts driverless train that only needs white painted lines as tracks

China's latest mode of public transportation is a bus, tram and train rolled into one.

Its maker, Chinese rail transit firm CRRC, is calling it a "smart bus," but it's a lot more than that. Like a train, it's modular and carriages can be added on; but like a bus, it runs on the road.

Amazingly, the carriage will follow a preset path and won't need a driver — but it won't need tracks to be laid, either. The train is equipped with sensors that'll allow it to follow white-dotted lines on the road. 

"It is like having a virtual rail for the bus," said Feng Jianghua, chief engineer of CRRC. Read more...