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Subjective And Objective Measures Of Fatigue When Driving
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Book Synopsis Subjective and Objective Measures of Fatigue when Driving by : Laurence Hartley
Download or read book Subjective and Objective Measures of Fatigue when Driving written by Laurence Hartley and published by . This book was released on 1995 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Comparison of Subjective and Objective Measures of Driver Fatigue During a Night of Sleep Deprivation by : Karolina Alicja Kozuchowski
Download or read book A Comparison of Subjective and Objective Measures of Driver Fatigue During a Night of Sleep Deprivation written by Karolina Alicja Kozuchowski and published by . This book was released on 2005 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309392527 Total Pages :273 pages Book Rating :4.3/5 (93 download)
Book Synopsis Commercial Motor Vehicle Driver Fatigue, Long-Term Health, and Highway Safety by : National Academies of Sciences, Engineering, and Medicine
Download or read book Commercial Motor Vehicle Driver Fatigue, Long-Term Health, and Highway Safety written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-09-12 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are approximately 4,000 fatalities in crashes involving trucks and buses in the United States each year. Though estimates are wide-ranging, possibly 10 to 20 percent of these crashes might have involved fatigued drivers. The stresses associated with their particular jobs (irregular schedules, etc.) and the lifestyle that many truck and bus drivers lead, puts them at substantial risk for insufficient sleep and for developing short- and long-term health problems. Commercial Motor Vehicle Driver Fatigue, Long-Term Health and Highway Safety assesses the state of knowledge about the relationship of such factors as hours of driving, hours on duty, and periods of rest to the fatigue experienced by truck and bus drivers while driving and the implications for the safe operation of their vehicles. This report evaluates the relationship of these factors to drivers' health over the longer term, and identifies improvements in data and research methods that can lead to better understanding in both areas.
Book Synopsis Sleepiness and Road Crashes by : J. A. L. Grigo
Download or read book Sleepiness and Road Crashes written by J. A. L. Grigo and published by . This book was released on 2011 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report provides a literature review of the topic of sleepiness and driving. Topics covered include the prevalence of sleepy driving, the difficulty of defining and measuring sleepiness-related crashes, the effects of sleepiness on laboratory measures related to driving performance, the effects of sleepiness on driving performance as measured by driving simulators or on-road studies, and issues related to the measurement of sleepiness (both subjectively-reported and objective measures). Recommendations for countermeasures and future research are made.
Book Synopsis Meta-cognitive Ability to Monitor Driving Performance After Fatigue Countermeasures by : Sarah Biggs
Download or read book Meta-cognitive Ability to Monitor Driving Performance After Fatigue Countermeasures written by Sarah Biggs and published by . This book was released on 2005 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sleep related vehicle accidents are a major cause of road fatalities around the world. Whilst caffeine and napping are known to be effective in improving driving performance, there is little evidence showing how these countermeasures affect perception of driving performance; a vital determinant in the decision to stop driving when fatigued. This study aimed to: 1. determine how fatigue countermeasures affected the meta-cognitive ability to monitor driving performance, and 2. confirm past findings relative to driving, fatigue and fatigue countermeasures. As it has been demonstrated that performance perception is highly correlated with feelings of alertness, it was hypothesised the fatigued subjects would overestimate their performance after ingesting caffeine and underestimate their performance after a brief nap. Using a repeated measure, counterbalanced design, subject (6m 6f; mean age = 23.8 ± 3.4yrs) participated in four daytime conditions: control (with normal/ad libitum sleep on previous night), 15 min nap, 100mg caffeine, and placebo (all sleep restricted to 4hrs on previous night). A psychomotor vigilance task and the York Driving Simulator measured objective fatigue and driving performance, Subjective sleepiness and perception of driving performance were measured on two Likert scales. Time-series correlations showed a significant correlation between subjective measures at time lag zero (p
Book Synopsis Driver Fatigue by : Narelle L. Haworth
Download or read book Driver Fatigue written by Narelle L. Haworth and published by . This book was released on 1988 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report addresses the topic of driver fatigue, an issue which is receiving increasing attention in the road safety field. A range of subject areas is reviewed in detail, including concepts and theories directly related to fatigue, the measurement of fatigue, factors contributing to the onset and development of fatigue, the degree to which fatigue is associated with road crashes, countermeasures having potential for offsetting the degrading effects of fatigue on safety, and an identification of research issues having promise for reducing the role of fatigue in crashes. accidents, fatigue, driver behaviour, boredom, stress, exhaustion, alcohol, drugs, sleep deprivation, fatality, sleep disorder, reaction time, physiological changes, noise, monotony, predictability, accident, tests, injury, stimulants, caffeine, amphetamines, nicotine.Road accidents. Countermeasures.
Book Synopsis The Handbook of Fatigue Management in Transportation by : Christina M. Rudin-Brown
Download or read book The Handbook of Fatigue Management in Transportation written by Christina M. Rudin-Brown and published by CRC Press. This book was released on 2023-08-02 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the world of transportation, fatigue is a silent killer that can affect us all. Understanding fatigue, including how to manage it to minimize safety risk, is of great importance. However, while it is one thing to recognize that fatigue is a critical safety issue, it is quite another to set up a successful, scientifically informed fatigue risk management programme. This book is here to help. It has been carefully designed as a comprehensive reference point, bringing together international expertise from leaders in fatigue science, and showcasing valuable insights from transportation industry practitioners. The 40 authored chapters are divided into six sections, to better understand fatigue science, the consequences of fatigue in transportation, contributors to fatigue, managing fatigue and promoting alertness, real world case studies of fatigue management in practice, and future perspectives. While it is possible to read each chapter in isolation, most will be gained by reading the book as a whole. Each chapter starts with an abstract overview and concludes with summary bullet points, creating a handy "quick check" for key points. This accessible text is for those who are interested in supporting alert and safe transportation operations. It is suitable for professionals, transport managers, government advisors, policy makers, students, academics, and anyone who wants to learn more. All transport modes (road, rail, maritime and aviation) are considered. For anyone waking up to the complex challenge of fatigue management, this handbook is a must.
Book Synopsis Driver Drowsiness and Fatigue in the Safe Operation of Vehicles - Definition of Terms and Concepts by : Driver Metrics, Performance, Behaviors and States Committee
Download or read book Driver Drowsiness and Fatigue in the Safe Operation of Vehicles - Definition of Terms and Concepts written by Driver Metrics, Performance, Behaviors and States Committee and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This SAE Information Report provides definitions and discussions of key terms concerning driver drowsiness and fatigue, and basic information on measuring drowsiness and fatigue. It also includes information and concepts for driver drowsiness as they relate to the safe operation of a vehicle. The key driver drowsiness and fatigue causal factors include the following: (1) sleep quality and quantity, (2) time of day, (3) time awake, (4) time on task (modulated by characteristics of the driving task), (5) task-related fatigue (variations of arousal levels related to task underload and overload), and (6) combinations of these factors. Medical conditions, medication, alcohol, or drugs exacerbate drowsiness; however, the discussion in this report is limited to fatigue concepts.This report has two primary outputs: (1) definitions and discussions of key terms concerning driver drowsiness and fatigue, and (2) basic information on measuring drowsiness and fatigue and its effects on the safe operation of a vehicle. These include the physiological and cognitive effects of driver drowsiness and fatigue on driving safety. Examples of effect of driver drowsiness and fatigue on driving safety include those related to vehicle control, operator vigilance (sustained attention), reaction times (object and event detection and response), situational awareness, physiological indicators, subjective assessments, and combinations thereof. For definitions of driving performance measures, refer to SAE J2944. This report applies to all worldwide motor vehicle passenger cars and light trucks, as well as heavy trucks, buses, motorcycles, and mopeds. The intended users of the document are practitioners and researchers in the automotive industry, academia, and other organizations with interest in driver drowsiness and fatigue, driving and driver performance assessment, and road safety. The terms "drowsiness" and "fatigue" are used interchangeably as drowsy driver and driver fatigue; however, they are defined very differently. There is not an agreed upon operational definition of fatigue, and, even today, it remains unclear. However, generally speaking, fatigue is usually defined as a state of reduced physical or mental alertness that impairs performance and is often the result of physical or mental exertion (Williamson et al., 1996); whereas drowsiness is the inclination to sleep resulting from lack of sleep, monotony and boredom, hunger, or other outside factors (Stutts et al., 1999). Drowsiness and fatigue are difficult to objectively measure; therefore, it is challenging to assess and consequently regulate how to avoid driving while fatigued. As fatigue or hypovigilance are difficult to assess via post-crash reconstruction, estimates of the frequency and outcomes of fatigued driving are likely conservative. According to a consensus statement published by a group of experts in fatigue and transportation, fatigue contributes to 15 to 20% of transportation crashes (Akerstedt et al., 2000). Moreover, drivers may be hesitant to disclose their level of drowsiness while driving or unaware of the fluctuations of their alertness. The severity of a crash may also leave a driver too incapacitated to report this information. Nevertheless, it is clear that fatigued drivers are more likely to be involved in crashes and are more likely to be involved in higher severity crashes as their reaction times are often delayed (National Academies of Science, Engineering, and Medicine, 2016). Thus, there is a need for approaches that measure drowsiness and fatigue as it relates to the safe operation of a vehicle. This document provides a set of concepts and definitions of terms that can be used to measure drowsiness and fatigue.
Book Synopsis The Handbook of Operator Fatigue by : Gerald Matthews
Download or read book The Handbook of Operator Fatigue written by Gerald Matthews and published by CRC Press. This book was released on 2017-11-01 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fatigue is a recognized problem in many facets of the human enterprise. It is not confined to any one area of activity but enters all situations in which humans have to perform for extended intervals of time. Most problematic are the circumstances in which obligatory action is continuous and the results of failure are evidently serious or even catastrophic. Therefore, the modern media especially highlights fatigue-related failures in industries such as transportation, materials processing and healthcare. It can be, and indeed is, no coincidence that most of the spectacular failures in process control that have resulted in the world's largest industrial accidents have occurred in the small hours of the morning when the circadian rhythm is lowest and operator fatigue itself peaks. While there have been legislative efforts made at state, federal and international levels to regulate working hours of employees, the appropriate implementation of such legislation is still a long way off. The Handbook of Operator Fatigue provides a comprehensive account of the subject to serve as the definitive reference work for researchers, students and practitioners alike. The volume features 30 chapters written by experts from around the world to address each important facet of fatigue, including: the scale of the fatigue problem (Section I), the nature of fatigue (Section II), how to assess fatigue (Section III), the impact of fatigue on health (Section IV), fatigue in the workplace (Section V), the neurological basis of fatigue (VI), sleep disorders (VII), and the design of countermeasures to fatigue (VIII).
Book Synopsis The Effects of Fatigue and Alcohol on Highway Safety by : Joan M. Ryder
Download or read book The Effects of Fatigue and Alcohol on Highway Safety written by Joan M. Ryder and published by . This book was released on 1981 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis An Evaluation of Emerging Driver Fatigue Detection Measures and Technologies by : Lawrence Barr
Download or read book An Evaluation of Emerging Driver Fatigue Detection Measures and Technologies written by Lawrence Barr and published by Createspace Independent Publishing Platform. This book was released on 2009-06-30 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study focuses on recent developments in mathematical models and vehicle-based operator alertness monitoring technologies. The major objective of this paper is to review and discuss many of the activities currently underway to develop unobtrusive, in-vehicle, real-time drowsy driver detection and fatigue monitoring/ alerting systems.
Book Synopsis U.S./Canada Study of Commercial Motor Vehicle Driver Fatigue and Alertness by :
Download or read book U.S./Canada Study of Commercial Motor Vehicle Driver Fatigue and Alertness written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Commercial Motor Vehicle (CMV) Driver Fatigue and Alertness Study was the largest and most comprehensive over-the-road study of its kind ever conducted in North America. Its primary purposes were to establish measurable relationships between CMV driver activities and physiological and psychological indicators of fatigue and reduced alertness and to provide a scientifically valid basis to determine the potential for revisiting the 60-year-old hours-of-service regulations. A number of work-related factors thought to influence the development of fatigue, loss of alertness and degraded performance in CMV drivers was studied within an operational setting of real-life, revenue-generating trips. These included: the amount of time spent driving during a work period; the number of consecutive days of driving; the time of day when driving took place; and schedule regularity. It was found that the strongest and most consistent factor influencing driver fatigue and alertness was time-of-day; drowsiness, as observed in video recordings of the driver's face, was markedly greater during night driving than during daytime driving. The number of hours of driving (time-on-task) was not a strong or consistent predictor of observed fatigue. Other study findings noted that the number of driving periods was not a strong or consistent fatigue predictor; that there was a low correlation between drivers' subjective self-ratings of alertness/sleepiness and concurrent objective performance measures; and that there was a large difference between the mount of sleep drivers reported as their ideal and the amount they obtained during principal sleep periods in the study setting. While there is no single solution to the fatigue problem, much can be done to address driver fatigue through a combination of innovative hours-of-service regulation and enforcement, education, driver work scheduling, innovative fatigue management programs, driver screening, fitness for duty and alertness monitoring systems, and additional research. For the covering abstract of this conference see IRRD number 872978.
Download or read book Sleepiness written by Michael J. Thorpy and published by Cambridge University Press. This book was released on 2011-01-27 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written and edited by leading clinicians and researchers in sleep medicine, this is the first book to focus on the causes, consequences and treatment of disorders of excessive sleepiness. Extensive coverage is provided for all known causes of sleepiness, including sleep deprivation, obstructive sleep apnea syndrome, narcolepsy and other hypersomnias of central origin, shift work, and medical and psychiatric disorders. Since many causes of sleepiness are difficult to differentiate from each other, and treatment modalities can vary greatly from one disorder to another, this book helps the clinician to formulate a differential diagnosis that will ultimately lead to the correct diagnosis. Epidemiology, evaluation of the sleepy patient, diagnostic investigations including neuroimaging, subjective and objective testing, cognitive effects of sleepiness, motor vehicle driving issues, medico-legal aspects of sleepiness, and therapy are also discussed in detail. This is an essential resource for neurologists, psychiatrists and sleep specialists.
Book Synopsis A Study of Relationships Between Subjective and Objective Measures of Driver Performance by : Ira Robinson
Download or read book A Study of Relationships Between Subjective and Objective Measures of Driver Performance written by Ira Robinson and published by . This book was released on 1973 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Thermal Stimulation during Passive Driver Fatigue by : Elisabeth Schmidt
Download or read book Effects of Thermal Stimulation during Passive Driver Fatigue written by Elisabeth Schmidt and published by Springer Nature. This book was released on 2019-11-11 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Elisabeth Schmidt investigates the effect of thermal stimulation during passive driver fatigue in a series of driving simulator experiments. Thermal stimulation of the upper body resulted in significantly decreased subjective fatigue ratings as well as an increase in pupil diameter and skin conductance. The effects of different stimulus temperatures, durations, lower leg cooling and repetitive cooling were also examined. The studies show that thermal stimulation of the upper body causes physiological and subjective effects, which can be associated with a short-term sympathetic activation, whereas lower leg cooling does not cause physiological activation.
Book Synopsis Traffic Safety and Human Behavior by : David Shinar
Download or read book Traffic Safety and Human Behavior written by David Shinar and published by Emerald Group Publishing. This book was released on 2017-06-22 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive 2nd edition covers the key issues that relate human behavior to traffic safety. In particular it covers the increasing roles that pedestrians and cyclists have in the traffic system; the role of infotainment in driver distraction; and the increasing role of driver assistance systems in changing the driver-vehicle interaction.
Book Synopsis Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome by : Institute of Medicine
Download or read book Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome written by Institute of Medicine and published by National Academies Press. This book was released on 2015-03-16 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Myalgic encephalomyelitis (ME) and chronic fatigue syndrome (CFS) are serious, debilitating conditions that affect millions of people in the United States and around the world. ME/CFS can cause significant impairment and disability. Despite substantial efforts by researchers to better understand ME/CFS, there is no known cause or effective treatment. Diagnosing the disease remains a challenge, and patients often struggle with their illness for years before an identification is made. Some health care providers have been skeptical about the serious physiological - rather than psychological - nature of the illness. Once diagnosed, patients often complain of receiving hostility from their health care provider as well as being subjected to treatment strategies that exacerbate their symptoms. Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome proposes new diagnostic clinical criteria for ME/CFS and a new term for the illness - systemic exertion intolerance disease(SEID). According to this report, the term myalgic encephalomyelitis does not accurately describe this illness, and the term chronic fatigue syndrome can result in trivialization and stigmatization for patients afflicted with this illness. Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome stresses that SEID is a medical - not a psychiatric or psychological - illness. This report lists the major symptoms of SEID and recommends a diagnostic process.One of the report's most important conclusions is that a thorough history, physical examination, and targeted work-up are necessary and often sufficient for diagnosis. The new criteria will allow a large percentage of undiagnosed patients to receive an accurate diagnosis and appropriate care. Beyond Myalgic Encephalomyelitis/Chronic Fatigue Syndrome will be a valuable resource to promote the prompt diagnosis of patients with this complex, multisystem, and often devastating disorder; enhance public understanding; and provide a firm foundation for future improvements in diagnosis and treatment.