WHY DO PEOPLE HAVE DROWSY DRIVING CRASHES? INPUT FROM DRIVERS WHO JUST DID

A number of approaches have been taken to studying the role of drowsiness in motor vehicle crashes and the characteristics of drivers involved in such crashes. This study questioned a large sample of drivers involved in both sleep-related and non-sleep-related crashes soon after the crash. The study uses a case-control research design. Cases for the study were drivers involved in recent police-reported crashes in North Carolina whose physical condition at the time of the crash was identified as either "asleep" or "fatigued" by the investigating officer. These case drivers are compared to two different populations of control drivers: (1) drivers involved in recent police-reported crashes in North Carolina who were not identified as asleep or fatigued, and (2) a second sample of non-crash-involved North Carolina drivers. All three populations of drivers were contacted for telephone interviews. Drivers were questioned about the perceived importance of drowsiness as a causal factor in motor vehicle crashes; their work and sleep schedules; the quality of their sleep; their usual level of daytime sleepiness; their driving exposure; measures they may take to reduce their likelihood of involvement in a drowsy driving crash; and, for the crash-involved drivers, the specific circumstances surrounding their recent crash. The survey results are analyzed both descriptively and by using multiple logistic regression models. Results suggest that the public perceives drowsy driving to be a somewhat less important cause of motor vehicle crashes than alcohol, but more important than poor weather conditions, speeding, or driver inexperience, and about equal in importance with aggressive driving. Work and sleep schedules were both strongly associated with involvement in a sleep-related crash. Drivers in sleep and fatigue crashes were more likely to report difficulties falling or staying asleep and were more likely to rate the overall quality of their sleep as "poor" or "fair". While most drivers agreed with the police officer's assessment of the role of sleepiness or fatigue in their crash, not all reported feeling drowsy before crashing.

[1]  G Maycock,et al.  Sleepiness and driving: the experience of U.K. car drivers. , 1997, Accident; analysis and prevention.

[2]  D. O'neill,et al.  Benzodiazepines and driver safety , 1998, The Lancet.

[3]  S. Coren.  Daylight savings time and traffic accidents. , 1996, The New England journal of medicine.

[4]  D L Fell,et al.  Driver fatigue in the city. , 1997, Accident; analysis and prevention.

[5]  T M Nelson.  Fatigue, mindset and ecology in the hazard dominant environment. , 1997, Accident; analysis and prevention.

[6]  C. Cook,et al.  Sleep related vehicle accidents , 1995, BMJ.

[7]  I D Brown.  DRIVER FATIGUE AND ROAD SAFETY , 1993 .

[8]  David F. Dinges,et al.  Changing Behaviors to Prevent Drowsy Driving and Promote Traffic Safety: Review of Proven, Promising, and Unproven Techniques , 1998 .

[9]  Ronald R Knipling,et al.  Revised estimates of the U.S. drowsy driver crash problem size based on general estimates system case reviews , 1995 .

[10]  H. Urponen,et al.  Daytime sleepiness: a risk factor in community life , 1992, Acta neurologica Scandinavica.

[11]  C Tingvall,et al.  Sleep apnea syndrome symptoms and automobile driving in a general population. , 1992, Journal of clinical epidemiology.

[12]  Mary A. Carskadon,et al.  Adolescent sleepiness: Increased risk in a high-risk population , 1990 .

[13]  M. Johns,et al.  A new method for measuring daytime sleepiness: the Epworth sleepiness scale. , 1991, Sleep.

[14]  Terry M. Brown,et al.  Principles and Practice of Sleep Medicine, second edition , 1995 .

[15]  Eric Rodgman,et al.  Characteristics of Accidents Attributed to the Driver Having Fallen Asleep , 1994 .

[16]  Gunter P. Siegmund,et al.  EFFICIENCY OF VEHICLE-BASED DATA TO PREDICT LANE DEPARTURE ARISING FROM LOSS OF ALERTNESS DUE TO FATIGUE , 1996 .

[17]  D M Freund,et al.  The driver fatigue and alertness study : a plan for research. , 1995 .

[18]  Michael J. Goodman,et al.  The role of driver inattention in crashes: new statistics from the 1995 crashworthiness data system , 1996 .

[19]  D Fell.  THE ROAD TO FATIGUE: CIRCUMSTANCES LEADING TO FATIGUE ACCIDENTS , 1993 .

[20]  J F O'Hanlon,et al.  Anxiolytics' effects on the actual driving performance of patients and healthy volunteers in a standardized test. An integration of three studies. , 1995, Neuropsychobiology.

[21]  A T McCartt,et al.  The scope and nature of the drowsy driving problem in New York State. , 1995, Accident; analysis and prevention.

[22]  Ronald R Knipling,et al.  CRASHES AND FATALITIES RELATED TO DRIVER DROWSINESS/FATIGUE , 1994 .

[23]  N J Chetta,et al.  Alcohol, drugs and driving. , 1967, The Journal of the Louisiana State Medical Society : official organ of the Louisiana State Medical Society.

[24]  C A Czeisler,et al.  Impaired driving performance in shiftworkers: the role of the circadian system in a multifactorial model. , 1990, Alcohol, drugs, and driving : abstracts and reviews.

[25]  D. Dawson,et al.  Fatigue, alcohol and performance impairment , 1997, Nature.

[26]  D. R. O W S Y D R I V I N G A N D A U T O M O B,et al.  DROWSY DRIVING AND AUTOMOBILE CRASHES , 2022 .

[27]  M. Mitler,et al.  It's time to wake up to the importance of sleep disorders. , 1993, JAMA.

[28]  T. Roth,et al.  Sleepiness and ethanol effects on simulated driving. , 1994, Alcoholism, clinical and experimental research.

[29]  C. I. Neutel,et al.  Risk of traffic accident injury after a prescription for a benzodiazepine. , 1995, Annals of epidemiology.

[30]  J. Lyznicki,et al.  Sleepiness, driving, and motor vehicle crashes , 1998 .

[31]  M. Johns,et al.  Reliability and factor analysis of the Epworth Sleepiness Scale. , 1992, Sleep.