The Contribution of Alcohol to Night Time Crash Risk and Other Risks of Night Driving

Some of the well researched factors that contribute to higher night time than daytime risks for drivers include impaired vision, fatigue and alcohol. This paper decomposes the New Zealand risk of driving at night into risk associated with alcohol and risk associated with inherently nighttime factors. The current study was a case control design, but the control sample was selected independently from the case sample which made it possible to evaluate the crash risk according to time of day. In particular, overall risks could be estimated for night driving versus day driving, and approximate sober risks could also be estimated to evaluate the contribution of alcohol to night time risk. The overall impact of alcohol use on driver risk was shown to decrease with increasing age for the most risky situation analyzed.


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  • Accession Number: 01004202
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Sep 15 2005 5:08PM