Conference Proceeding

Assessing Driver Fatigue as a Factor in Road Accidents

  • William Sirois (Circadian Technologies, Stoneham, MA)
  • Todd Dawson (Circadian Technologies, Stoneham, MA)
  • Martin Moore-Ede (Circadian Technologies, Stoneham, MA)
  • Acacia Aguirre (Circadian Technologies, Stoneham, MA)
  • Udo Trutschel (Circadian Technologies, Stoneham, MA)


Fatigue is one of the most pervasive yet under-investigated causes of human-error-related driving accidents, incidents, and injuries. Several studies suggest that 25-30% of driving accidents are fatigue related (Horne et al., 1995). However, government reports estimate that only 1-4% of crashes may be attributable to the driver falling asleep or being drowsy, based largely on data derived from police reports recorded at these accidents (Cummings et al., 2001). The reason for this wide disparity is that there is no simple tool or objective way for investigators to collect the (right) data needed to correlate accidents with fatigue. To bridge this gap, a diagnostic survey instrument was developed, along with a weighted risk model based on Fuzzy Scalable Monotonic Chaining (FSMC), to help investigators readily determine (by standardized criteria and with high probability) the role of fatigue as a causal factor in driving accidents.

How to Cite:

Sirois, W. & Dawson, T. & Moore-Ede, M. & Aguirre, A. & Trutschel, U., (2007) “Assessing Driver Fatigue as a Factor in Road Accidents”, Driving Assessment Conference 4(2007), 527-533. doi:

Rights: Copyright © 2007 the author(s)

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Published on
12 Jul 2007
Peer Reviewed