What factors may be an obstacle for proper observation of the road by a driver of a farm tractor driving at night?
Show the correct answer
Correct answer
A. Inability to distinguish shapes in the dark and sensitivity to being blinded.
Explanation
In the photo, you are driving at night on a poorly lit road; a vehicle with bright lights is coming from the opposite direction, and it is dark all around. At night, proper observation of the road may be disturbed by the inability to distinguish shapes in the dark and sensitivity to being blinded - answer A.
After dark the eye works in a different mode: it sees colours and details poorly, and shapes in the half-light merge with the background - a pedestrian at the edge may look like a post or a bush. The pupils are wide open, so bright light from the opposite direction blinds you more strongly than during the day, and getting back to seeing in the dark takes a few seconds. With age both of these weaknesses usually increase. Proper glasses for driving at night (answer B) and good sharpness of vision (answer C) help observation rather than hinder it. Keep your windows and headlights clean, do not look straight into oncoming lights, and slow down when you can no longer see the road well.
Legal basis: Art. 19 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)