Extended driving impairs nocturnal driving performances

Patricia Sagaspe, Jacques Taillard, Torbjorn Åkerstedt, Virginie Bayon, Stéphane Espié, Guillaume Chaumet, Bernard Bioulac, Pierre Philip
PLoS ONE. 2008-10-22; 3(10): e3493
DOI: 10.1371/journal.pone.0003493

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1. PLoS One. 2008;3(10):e3493. doi: 10.1371/journal.pone.0003493. Epub 2008 Oct 22.

Extended driving impairs nocturnal driving performances.

Sagaspe P(1), Taillard J, Akerstedt T, Bayon V, Espié S, Chaumet G, Bioulac B,
Philip P.

Author information:
(1)GENPPHASS, CHU Pellegrin, Bordeaux, France.

Though fatigue and sleepiness at the wheel are well-known risk factors for
traffic accidents, many drivers combine extended driving and sleep deprivation.
Fatigue-related accidents occur mainly at night but there is no experimental data
available to determine if the duration of prior driving affects driving
performance at night. Participants drove in 3 nocturnal driving sessions (3-5 am,
1-5 am and 9 pm-5 am) on open highway. Fourteen young healthy men (mean age
[+/-SD] = 23.4 [+/-1.7] years) participated Inappropriate line crossings (ILC) in
the last hour of driving of each session, sleep variables, self-perceived fatigue
and sleepiness were measured. Compared to the short (3-5 am) driving session, the
incidence rate ratio of inappropriate line crossings increased by 2.6 (95% CI,
1.1 to 6.0; P

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