Hazard Perception and Risk Management
Core concepts
Hazard perception is about scanning far ahead, checking mirrors regularly, and identifying developing risks before they become emergencies. Use a systematic scan: look 12–15 seconds ahead in urban areas, further on highways; check mirrors every 5–8 seconds; and monitor your blind spots before any lateral move. Understand the difference between a hazard (something with potential to cause harm) and a developing hazard (one that is changing, such as a pedestrian stepping toward the kerb).
Key risk factors
Speed, following distance, fatigue, distraction and alcohol are the dominant contributors to serious crashes. Use the three-second gap in dry conditions, doubling it in rain and more in poor visibility. Remember stopping distance = reaction distance + braking distance, and that braking distance increases with the square of speed: doubling speed roughly quadruples braking distance. Recognise high-risk settings: school zones, shopping strips, rural roads at dusk (animal activity), and level crossings.
Traps
Questions often present a scene where one cue is obvious and another is subtle. The trap is choosing the obvious hazard and missing the developing one - for example, a parked car with a brake light on, or a cyclist drifting out. Another trap is the "I have right of way, so proceed" mindset; the safe answer is almost always to yield or slow when uncertainty exists. Fatigue questions frequently test that the only remedy is stopping and resting, not coffee or fresh air.
Rule of thumb
Ask "what is the worst thing that could happen here, and is it likely in the next three seconds?" If yes, reduce speed and increase space before doing anything else.