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Difficulty: MediumNight Driving and Headlight Glare Management

When driving at night on an unlit road, you should switch from high-beam to low-beam headlights before reaching the crest of a hill or rounding a sharp curve, even before an oncoming vehicle becomes directly visible.

Answer: Answer

Answer

True
The statement is True because high-beam headlights project forward and upward, meaning they will strike an oncoming driver's eyes over a hill crest or sharp curve before the vehicle itself can be seen. Preemptive dimming prevents glare hazards.

Step-by-Step Solution

1
Analyze how high-beam headlights project light over elevation changes and around blind curves.
High beams project light far ahead and upward, reaching the eyes of oncoming drivers before their vehicle's headlights become visible to you.
The trajectory of high beams over a crest or around a curve creates glare for oncoming traffic prior to direct line-of-sight contact.
2
Apply official DMV safety guidelines regarding proactive glare management.
Dimming high beams preemptively when approaching blind spots avoids subjecting approaching drivers to sudden blinding glare.
Proactive headlight management preserves night vision and reduces collision risk for all road users.

Key Concept

Preemptive headlight dimming at hill crests and sharp curves to prevent glare
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Topics

Night Driving and Headlight Glare Management

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