Over 50% of fatal injuries to road workers are caused by motorists striking workers with vehicles in or near the work zone (pedestrian–vehicle incidents).

Direct answer

Most sources on work‑zone safety agree that the majority of fatal injuries to road workers come from:

  • Vehicles driving through or within the work zone and hitting workers on foot
  • This includes cars, trucks, and construction vehicles moving forward or backing up.

Why this is the correct completion

When this question appears in safety quizzes or study guides, the completed statement is typically:

“Over 50% of fatal injuries to road workers are caused by motorists/vehicles striking workers.”

Data from road‑work fatality analyses show:

  • Nearly half or more of worker deaths in road work zones involve a vehicle striking a pedestrian worker, not falls or other on‑site hazards.
  • In recent years, the share of worker deaths caused by vehicles hitting workers has climbed above half of all road‑construction worker fatalities.

In short (quiz-style)

If you have multiple‑choice options like:

  • Worker error
  • Unsafe conditions
  • Motorists
  • Equipment failure

The best answer to “Over 50% of fatal injuries to road workers are caused by” is: Motorists (vehicles striking workers).

Information gathered from public forums or data available on the internet and portrayed here.