SYMPTOMS OF DRIVER FATIGUE ON LONG CAR JOURNEYS AND RECENT COLLISION INVOLVEMENT

SRVA‟s typically involve running off the road or into the back of another vehicle, with no braking beforehand. Sagberg (1999) reported that sleep or drowsiness was a contributing factor in 3.9% of all accidents reported by 9200 Norwegian accidentinvolved drivers. This factor was strongly over-represented in night time accidents (18.6%), in running-off-the-road accidents (8.3%), accidents after driving more than 150km on 1 trip (8.1%) and personal injury accidents (7.3%). Fatigue is often implicated in single-vehicle crashes, and on average these result in more severe injury than multi-vehicle crashes (Connor et al, 2001).