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Washington Personal Driver Knowledge Test
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Passing target: 80% (32/40)
Observation, Speed & SpaceStandalone practice
You drive from a city street onto a 60 mph highway and speed up. What happens to your vision as your speed increases?
Correct answer: The quality of your central, fringe, and side vision goes down
Why
You use three types of vision when you drive: central vision for detail straight ahead, fringe vision at the edges, and peripheral vision to the sides. At higher speeds each one works less well, and you have less time to scan for pedestrians, bicyclists, and other vehicles. Scan actively and keep a safe speed so that a hazard at the side does not surprise you.
Verified against Washington Driver Guide · 5.5 Focus: Field of vision · p. 164
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