AF Light Vehicle Driving Theory study materials
AF Light Vehicle Driving Theory study resources

AF Light Vehicle Driving Theory: Safe Driving Practices, Hazard Awareness, and Defensive Driving

AF Light Vehicle Driving Theory · Work through your exam, one topic at a time.

All guide sections

Safe Driving Practices, Hazard Awareness, and Defensive Driving

What you must know

This domain is about seeing hazards early and managing space and speed. Candidates must understand the system of vehicle control (mirrors, signal, manoeuvre; observation before action), following-distance rules, the two-second gap and its increase in rain or at night, and stopping distances as speed rises. Learn hazard perception: scanning far ahead, using mirrors regularly, checking blind spots, and anticipating the actions of pedestrians, cyclists, and other drivers. Understand the effects of alcohol, fatigue, distraction, and weather on reaction time.

Traps in questions

Questions often present a developing scene and ask for the first action or the safest action, not the most convenient one. Easing off the accelerator is frequently safer than braking hard or swerving. Remember that the two-second gap is a minimum in good, dry conditions and should be doubled in wet weather. Distraction questions may tempt you to answer 'signal and continue' when the correct response is to slow and increase space. Watch for 'always' and 'never' absolutes.

Worked example

You are following a car at the two-second gap when rain starts. Should you keep the same gap? No: in wet conditions the gap should be at least doubled to four seconds, because stopping distances increase and visibility falls. Rule of thumb: if the vehicle ahead passes a fixed point, you should be able to say 'only a fool breaks the two-second rule' before you reach it; in rain, say it twice.

Rule of thumb

See it early, decide early, act smoothly: space and speed are your main safety margins.