In road safety, how does human fatigue affect a driver's reaction time and visual perception?

Answer and explanation

Correct answer: D. Fatigue significantly increases reaction time and causes tunnel

  1. Step 1: Effects of fatigue. Step 2. Fatigue delays reflexes, narrows peripheral vision (visão em túnel), and degrades alertness. Answer: Fatigue significantly increases reaction time and causes tunnel vision and diminished vigilance. Why not the others: Fatigue never improves reflexes.

Practise more Active Safety, Braking Dynamics, Weather Hazards, and Human Factors.

Free questions with an explanation for every one, and full timed Exame de Código (Driving Theory Test) - Portugal mock tests.