At night, near the middle of the road where the headlight beams of an oncoming car and your own car overlap, a pedestrian crossing there can momentarily disappear from view. What is this phenomenon called?
💡 Hint
At night, a pedestrian can become invisible not only when light is too weak but also when two sets of lights overlap and become too bright. Sort out whether each option's phenomenon relates to tires, the road surface, brakes, or visibility.
Answer: ①
Explanation
Where the two sets of headlights overlap, the light is so strong that a pedestrian between them seems to vanish; this is called the evaporation phenomenon. When passing oncoming cars at night, slow down and watch especially for pedestrians near the middle of the road. Standing waves concern tyres, aquaplaning concerns wet roads, and fading concerns overheated brakes.
Legal basis: 안전운전 일반: 야간 증발현상