Vehicle-based drowsy driver detection : current status and future prospects
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1994-01-01
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Abstract:Driver drowsiness is a major, though elusive, cause of traffic crashes. As part of its
IVHS/human factors program, NHTSA is supporting research to develop in-vehicle systems .
to continuously monitor driver alertness and performance. Scientific support for the
feasibility of this countermeasure concept is provided by research showing that: Drowsy drivers typically do not “drop off’ instantaneously. Instead, there is a preceding period of measurable performance decrement with associated psychophysiological signs; Drowsiness can be detected with reasonable accuracy using driving performance measures such as “drift-and-jerk” steering and fluctuations in vehicle lateral lane position; The use of direct, unobtrusive driver psychophysiological monitoring (e.g., of eye closure) could potentially enhance drowsiness detection significantly; The use of secondary/subsidiary auditory tasks (e.g., auditory recognition tasks presented to the driver via recorded voice) could further enhance detection accuracy.
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