Time of day variations in driving performance

Lenné, Michael G.; Triggs, Thomas J; Redman, Jennifer R.

doi:10.1016/s0001-4575(97)00022-5

Cited by 183 publications

(75 citation statements)

References 16 publications

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“…There is a circadian propensity for sleepiness in the early afternoon, contrasting with an alertness peak early evening, which potentiates the sedating effects of alcohol. Impairments in driving performance in the early afternoon are of a similar magnitude to those occurring in the late evening and early morning (Horne and Baumber, 1991;Horne and Gibbons, 1991;Lenne et al, 1997). There is some suggestion that the legal BAC limit should be reduced during the zones of vulnerability for fatigue-related accidents.…”

Section: Discussionmentioning

confidence: 99%

Effects of prolonged wakefulness combined with alcohol and hands-free cell phone divided attention tasks on simulated driving

Iudice

Bonanni

Gelli

et al. 2005

Hum. Psychopharmacol. Clin. Exp.

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Simulated driving ability was assessed following administration of alcohol, at an estimated blood level of 0.05%, and combined prolonged wakefulness, while participants were undertaking divided attention tasks over a hands-free mobile phone. Divided attention tasks were structured to provide a sustained cognitive workload to the subjects. Twenty three young healthy individuals drove 10 km simulated driving under four conditions in a counterbalanced, within-subject design: alcohol, alcohol and 19 h wakefulness, alcohol and 24 h wakefulness, and while sober. Study measures were: simulated driving, self-reported sleepiness, critical flicker fusion threshold (CFFT), Stroop word-colour interference test (Stroop) and simple visual reaction times (SVRT). As expected, subjective sleepiness was highly correlated with both sleep restriction and alcohol consumption. The combination of alcohol and 24 h sustained wakefulness produced the highest driving impairment, significantly beyond the alcohol effect itself. Concurrent alcohol and 19 h wakefulness significantly affected only driving time-to-collision. No significant changes of study measures occurred following alcohol intake in unrestricted sleep conditions. CFFT, SVRT and Stroop results showed a similar trend in the four study conditions. Thus apparently 'safe' blood alcohol levels in combination with prolonged wakefulness resulted in significant driving impairments. In normal sleep conditions alcohol effects on driving were partially counteracted by the concomitant hands-free phone based psychometric tasks.

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Section: Discussionmentioning

confidence: 99%

Effects of prolonged wakefulness combined with alcohol and hands-free cell phone divided attention tasks on simulated driving

Iudice

Bonanni

Gelli

et al. 2005

Hum. Psychopharmacol. Clin. Exp.

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“…In order to minimize effects of time of day variations (Lenné, Triggs, & Redman, 1997;Reimer, D'Ambrosio, & Coughlin, 2007), each participant presents oneself daily at the same time, however the start time between different participants varied. On the first day, participants were asked for their informed consent and to fill out a form with their personal data (e.g.…”

Section: Methodsmentioning

confidence: 99%

“…Jenssen et al (2007) examined an adaptive front light system within a study design where each test-and control participant had to complete one driving session per day for a period of six consecutive days. We are aware that more simulator studies have been published where participants had to complete multiple driving sessions and thus were repeatedly exposed to a (highly) identical driving scene (Åkerstedt et al, 2010;Charlton and Starkey, 2011;Domeyer et al, 2013;Lenné et al, 1997;Martens and Fox, 2007). Yet, the focus of interest in these studies is too different from ours which is to test the impact of road infrastructural treatments on drivers' behavior.…”

Section: Introductionmentioning

confidence: 99%

Does the effect of traffic calming measures endure over time? – A simulator study on the influence of gates

Ariën

Brijs

et al. 2014

Transportation Research Part F: Traffic Psychology and Behaviou

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Accident statistics show that transitions from rural to urban areas are accident prone locations. Inappropriate speed and mental underload have been identified as important causal factors on such transitions. A variety of traffic calming measures (TCM) near rural-urban transitions has been tested in field experiments and driving simulator studies. Simulator experiments where drivers are exposed a single TCM in one session are well reported in the literature. However, the extents to which drivers' behavior will be consistent over time when exposed to the same treatment over time are relatively scare and unclear. This study examined drivers behavior when exposed to the same treatment (a gate construction located at a rural-urban transition). Over a period of five successive days, seventeen participants completed a 17 km test-drive on a driving simulator with two thoroughfare configurations (gates present or absent) in a within-subject design. Results indicate that gates induced a local speed reduction that sustained over this five-day period. The effect on standard deviation of acceleration/deceleration and lateral position was rather limited. Overall we conclude that gate constructions have the potential to improve traffic safety in the direct vicinity of rural-urban transitions, even if drivers are repeatedly exposed. Notwithstanding, we advise policy makers to appropriately use this measure. Best is to always carefully consider the broader situational context (such as whether the road serves a traffic-rather than a residential function) of each particular location where the implementation of a gate construction is one of the options.

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“…The worst performance occurs at night. 11,33 Circadian rhythms in basic neuropsychological processes…”

Section: Circadian Variations In Performance Of Different Tasksmentioning

confidence: 99%

Circadian rhythms in cognitive performance: implications for neuropsychological assessment

Valdéz¹,

Ramírez²,

García³

2012

CPT

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Circadian variations have been found in human performance, including the efficiency to execute many tasks, such as sensory, motor, reaction time, time estimation, memory, verbal, arithmetic calculations, and simulated driving tasks. Performance increases during the day and decreases during the night. Circadian rhythms have been found in three basic neuropsychological processes (attention, working memory, and executive functions), which may explain oscillations in the performance of many tasks. The time course of circadian rhythms in cognitive performance may be modified significantly in patients with brain disorders, due to chronotype, age, alterations of the circadian rhythm, sleep deprivation, type of disorder, and medication. This review analyzes the recent results on circadian rhythms in cognitive performance, as well as the implications of these rhythms for the neuropsychological assessment of patients with brain disorders such as traumatic head injury, stroke, dementia, developmental disorders, and psychiatric disorders.

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Time of day variations in driving performance

Cited by 183 publications

References 16 publications

Effects of prolonged wakefulness combined with alcohol and hands-free cell phone divided attention tasks on simulated driving

Effects of prolonged wakefulness combined with alcohol and hands-free cell phone divided attention tasks on simulated driving

Does the effect of traffic calming measures endure over time? – A simulator study on the influence of gates

Circadian rhythms in cognitive performance: implications for neuropsychological assessment

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