During what hours do most heavy vehicle accidents occur?

During what hours do most heavy vehicle accidents occur?

• A. Afternoon rush
• B. Evening
• C. Midnight and 6 am
• D. Morning commute

Answer: (C)

Fatigue is the key factor being tested here. Heavy-truck drivers often put in long hours, especially on overnight routes, and sleep deprivation sharply lowers reaction time, attention, and steering control. The darkness also reduces visibility, making hazards harder to see and respond to in time. Although there are fewer vehicles on the road from midnight to 6 a.m., the crash risk for heavy vehicles rises because tired drivers are more prone to errors like drifting out of lanes or not braking soon enough. That combination—long hours, fatigue, and limited nighttime visibility—drives the higher incidence of crashes in that overnight window, making midnight to 6 a.m. the period with the most heavy-vehicle accidents.

Fatigue is the key factor being tested here. Heavy-truck drivers often put in long hours, especially on overnight routes, and sleep deprivation sharply lowers reaction time, attention, and steering control. The darkness also reduces visibility, making hazards harder to see and respond to in time. Although there are fewer vehicles on the road from midnight to 6 a.m., the crash risk for heavy vehicles rises because tired drivers are more prone to errors like drifting out of lanes or not braking soon enough. That combination—long hours, fatigue, and limited nighttime visibility—drives the higher incidence of crashes in that overnight window, making midnight to 6 a.m. the period with the most heavy-vehicle accidents.