Sleep related vehicle accidents

TLDR

Because the UK lacks norms for road use by age, sex, and time of day, hourly exposure and risk factors for subgroups cannot be determined. The study assessed the incidence, timing, and driver morbidity of sleep‑related vehicle accidents. Researchers conducted two surveys—one using police databases and another via on‑spot interviews—in southwest England and the Midlands. The surveys identified 679 sleep‑related accidents, representing 16 % of major‑road incidents in southwest England and over 20 % on Midland motorways, with three daily peaks (0200, 0600, 1600), predominantly affecting men under 30, and findings consistent with other countries.

Abstract

To assess the incidence, time of day, and driver morbidity associated with vehicle accidents where the most likely cause was the driver falling asleep at the wheel.Two surveys were undertaken, in southwest England and the midlands, by using police databases or on the spot interviews.Drivers involved in 679 sleep related vehicle accidents.Of all vehicle accidents to which the police were summoned, sleep related vehicle accidents comprised 16% on major roads in southwest England, and over 20% on midland motorways. During the 24 hour period there were three major peaks: at around 0200, 0600, and 1600. About half these drivers were men under 30 years; few such accidents involved women.Sleep related vehicle accidents are largely dependent on the time of day and account for a considerable proportion of vehicle accidents, especially those on motorways and other monotonous roads. As there are no norms for the United Kingdom on road use by age and sex for time of day with which to compare these data, we cannot determine what the hourly exposure v risk factors are for these subgroups. The findings are in close agreement with those from other countries.