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General Knowledge · Seeing

Why do good drivers look 12 to 15 seconds down the road ahead, rather than focusing mainly on the vehicle directly in front of them?

1.It gives enough lead time to notice a developing hazard and react before a last-second reaction is the only optionCorrect answer
2.It is required under federal equipment regulation to keep adaptive cruise control continuously engaged on the highway
3.It measurably reduces windshield glare caused by the headlights of oncoming nighttime highway traffic further ahead
4.It automatically keeps the vehicle centered in its lane even without any driver steering input being needed at all times

Explanation

Looking 12 to 15 seconds down the road, rather than fixing attention on the vehicle directly ahead, gives a driver enough lead time to notice a developing hazard, such as brake lights, a stopped vehicle, or a merging lane, and to change speed or move to another lane before a sudden, last-second reaction becomes the only option. Visual search, including seeing ahead, is part of the required knowledge CDL applicants must have under 49 CFR 383.111(a)(7)(i), but that paragraph only names it as a required knowledge topic; it does not itself set a specific look-ahead distance or time, which is standard driver-training guidance rather than a codified federal rule. Cruise control operation, windshield glare, and lane-keeping are all unrelated to how far ahead a driver chooses to look.

Source: 49 CFR 383.111(a)(7)(i)

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