Nova Scotia Knowledge Test Coach
Road signsQuestion 58 of 296

What is the biggest hazard in a work zone?

  1. Wide lanes
  2. Orange cones
  3. Vehicles that drive at different speeds
  4. Bright signs
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Correct answer: Vehicles that drive at different speeds

Speed differences between vehicles cause most work zone crashes. Watch the vehicles ahead and behind you and change your speed with them.

Source: Nova Scotia Driver's Handbook (Service Nova Scotia, 2000, reprinted with revisions to 2017), Chapter 3, Signs, Pavement Markings, and Work Zones: Travelling safely through a work zone, page 95

Practice road signs

Questions last reviewed: 18 October 2026