Practice question

Which of the following best explains why the proportion of nighttime fatal crashes is disproportionately high compared to the share of total travel that occurs at night?

  1. More trucks operate at night
  2. Reduced visibility, higher rates of impairment, fatigue, and speeding during nighttime hours
  3. Speed limits are higher at night
  4. More construction zones are active at night

Answer: B — Reduced visibility, higher rates of impairment, fatigue, and speeding during nighttime hours

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