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Glossary
Pages 217-224

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From page 217...
... : A nonprofit research organization that is a member of the American Trucking Associations. Biomathematical models: Mathematical models that predict the impacts on performance of various work/rest schedules, including the effects of extended wake durations or rotating shifts.
From page 218...
... Commercial Vehicle Safety Alliance (CVSA) : An international nonprofit organization comprising motor carrier safety officials and industry representatives from the United States, Canada, and Mexico, with the mission of promoting commercial motor vehicle safety and security.
From page 219...
... : A database containing information on all motor vehicles involved in fatal traffic crashes in the United States, maintained by the National Highway Traffic Safety Administration (NHTSA)
From page 220...
... Department of Transportation with the mission of preventing commercial motor vehicle-related fatalities and injuries. Its activities include enforcing safety regulations, targeting high-risk carriers and commercial motor vehicle drivers, improving safety information systems and commercial motor vehicle technologies, strengthening commercial motor vehicle equipment and operating standards, and increasing safety awareness.
From page 221...
... A commercial motor vehicle driver whose medical certificate expires must be examined by a medical professional listed in the NRCME to retain driving privileges. National Transportation Safety Board (NTSB)
From page 222...
... : A measure of the percentage of eyelid closure over a period of time -- one of the most accepted measures of drowsiness. Polysomnography: A sleep study that records the following body functions as subjects either sleep or try to sleep: air flow in and out of the lungs, the level of oxygen in the blood, body position, brain waves, breathing effort and rate, electrical activity of muscles, eye movement, and heart rate.
From page 223...
... when different treatments are administered at a particular point in time under otherwise identical conditions. Rumble strips: A road safety feature designed to alert fatigued or i ­nattentive drivers that they are leaving their lane or the roadway by causing a vibration and an audible rumbling sound when a vehicle's tires pass over them.
From page 224...
... , supplemented by data collected by University of Michigan Transportation Research Institute (UMTRI) researchers.


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