Human Factors, Speed & Blind Spots

Revise perception, reaction, fatigue, alcohol and drugs, judgement of speed and distance, mirrors, blind spots, and natural forces.

Core Ideas

Most RTT judgement questions test whether you can see, decide, and react early enough.

Rider physical and mental condition

Alcohol, drugs, reaction time, speed, and stopping distance

Mirror use, blind spots, friction, skidding, and centrifugal force

Mirror plus head check

Check mirrors often, then turn your head before changing lane, overtaking, turning, or stopping.

If you drink, do not ride

Alcohol and some medication can impair judgement, concentration, reaction time, and control.

Eyes moving, not fixed.

Mirror first, blind spot before movement.

Slow down before friction disappears.