SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/cdl-look-ahead-12-15

How far ahead should a CDL driver scan the road ahead?

Scan 12 to 15 seconds ahead.

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  1. 5 seconds ahead
  2. 12 to 15 seconds ahead ✔
  3. Only the vehicle directly ahead

Why: This gives you time to spot hazards and avoid sudden stops or lane changes. At highway speeds, 12 to 15 seconds is about one quarter of a mile.

Huh, didn't know that: At 55 mph, a vehicle travels about 80 feet in one second.

The dad joke
Why did the trucker stare far down the road? Because last-minute surprises are not a good look.
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References

Answer: 12 to 15 seconds ahead. This gives you time to spot hazards and avoid sudden stops or lane changes. At highway speeds, 12 to 15 seconds is about one quarter of a mile.

  1. California Commercial Driver Handbook (AAMVA model manual) www.dmv.ca.gov/portal/file/california-commercial-driver-handbook-pdf
    Most good drivers look at least 12 to 15 seconds ahead.
    Checked 2026-10-10.

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