Perception distance is:
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How far a vehicle travels, in ideal conditions, from the time the driver sees a hazard until his/her brain recognizes it.
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How long it takes a driver to physically hit the brakes.
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How far a drunk person can travel before coming to a complete stop in response to a hazard ahead.
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How far a driver will continue to travel, in ideal conditions; before he/she physically hits the brakes.
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Explanation
Perception distance indicates how far your vehicle travels, in ideal weather conditions, from the time you see a hazard until your brain recognizes it. Perception distance can vary depending on many factors, such as the weather conditions, the driver's mental and physical conditions, and the hazard itself. For an alert driver, the average perception time is 0.75 to 1 second.
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Other questions in the same category: Stopping Distance
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