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South Dakota Operator License Knowledge Practice Test
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Observation, Speed & SpaceStandalone practice
Your normal following distance is 4 seconds. Tonight you drive on a dark road that you have never used before. What following distance does the manual recommend?
Correct answer: At least 6 seconds, because you add 2 seconds at night on an unfamiliar road
Why
At night your view is limited to the reach of your headlights. On a road you do not know, you cannot predict curves, hills or hazards. Extra space gives you more time to see a problem and stop.
Verified against South Dakota Driver License Manual · Night driving · p. 66, 51
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