Question to the Department for Transport:

To ask the Secretary of State for Transport, how many fatal road traffic accidents were caused by drivers falling asleep at the wheel in each of the last three years.

The Department does not collect information specifically on drivers falling asleep at the wheel. However, the Department does hold information on the number of accidents where the attending police officer judged that driver fatigue contributed to the cause of the accident. The table below provides the number of fatal road traffic accidents that were reported to the police in which at least one driver was allocated the contributory factor of fatigue for 2011 to 2013.