The CRCDS software is ported from the National Advanced Driving Simulator (NADS).
[3] The system consists of a single PC, three 21-inch LCD monitors (105-degree field of view), a full-size steering wheel and pedals,[1] an instrument panel display, a 2.1 audio system, a tactile transducer, and a separate display for the Coach/Instructor.
The monotonous Country Vigilance scenario has been demonstrated to be sensitive to detecting the effects of fatigue or sleepiness on driving performance.
This scenario has been useful in evaluating patients with a variety of conditions including Obstructive Sleep Apnea (OSA), measuring the effects of sleep deprivation, chronic primary insomnia, and is sensitive to CNS depressants (e.g., alcohol and sedating antihistamines).
This scenario was designed to provide the participant with the standardized practice of the driving tasks being completed during testing.