Defensive Driving Techniques
⏱ ~3-min readAceMark Guide
What this topic is really about
Covering the brake means moving your foot off the accelerator and holding it just above the brake pedal so you can react instantly near hazards like crosswalks or merging traffic. Pressing the pedal lightly instead is 'riding the brake,' which wears the brakes and confuses drivers behind you.
The three-second rule means picking a fixed point and ensuring at least three seconds pass before you reach it after the car ahead does, which scales correctly with speed. Counting car lengths is unreliable because it ignores how distance traveled grows with speed.
See the mechanism
The three-second rule means picking a fixed point and ensuring at least three seconds pass before you reach it after the car ahead does, which scales correctly with speed. A diagram for this topic isn't available yet — the worked example below walks the same reasoning step by step.
An exam-style question, fully explained
What is the recommended minimum following distance in good conditions, measured by the 'three-second rule'?
- Identify what the question tests: What is the recommended minimum following distance in good conditions, measured by the 'three-second rule'.
- The three-second rule means picking a fixed point and ensuring at least three seconds pass before you reach it after the car ahead does, which scales correctly with speed.
- Counting car lengths is unreliable because it ignores how distance traveled grows with speed.
Traps the examiner sets
- Loud music or coffee may feel stimulating but only mask fatigue briefly and do not restore alertness.
Test your recall
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