Reaction Time: The time it takes for a person to respond to a stimulus. For example, the driver's reaction time determines how quickly they can slow down when another car is overtaking.
Situational Awareness: The awareness of one's surroundings and understanding potential risks or threats in that environment. When driving, situational awareness helps the driver anticipate and respond appropriately to other cars on the road.
Defensive Driving: A set of driving techniques aimed at reducing risks by anticipating potentially dangerous situations and adjusting driving behavior accordingly. Slowing down when another car is overtaking is an example of defensive driving.