by Nicola Davis in Austin on (#3FZWD)
Next wave of development will see drivers only expected to intervene when the car requests it, say researchersDriving down the motorway in a swanky semi-autonomous car, the vehicle is at its own wheel, humming along smoothly. But coming off a slip road it is over to you. The only trouble is, you’ve fallen asleep.The goal of a completely driverless car is considered top of a six-level scale of autonomy, and researchers believe it will one day be possible to achieve that aim. But for now, cars are stuck at level two on the scale – in which the driver must still perform several key aspects of driving – while engineers work out how to crack the problem of keeping drivers alert.