Driverless cars could cause havoc on the roads

Driverless cars could be dangerous because of the time it takes for drivers to retake control if something goes wrong, scientists have warned. A new study found it could take 25 seconds for drivers to take the wheel in a non-emergency situation. It is feared this lag could cause driverless cars to swerve, make sudden lane changes or brake harshly if people do react fast enough. Research by the University of Southampton found drivers took up to 25.7 seconds when distracted to respond to a command to take over from the car's computer. Professor Neville Stanton, lead author, shown in Southampton's driving simulator But initial models are not expected to drive themselves for a full journey.