Which term describes the time it takes a driver to react to a hazard?

• A. Braking distance
• B. Perception time
• C. Stopping time
• D. Driving reaction times

Answer: (D)

Reaction time in driving is the interval between recognizing a hazard and initiating a response, such as braking or steering. This captures the moment the driver processes the danger and decides how to react. The driving reaction times option fits this idea exactly, describing the time the driver takes to respond after a hazard is seen. Braking distance relates to how far the car travels after braking begins, not the delay before braking. Perception time is only the moment of noticing the hazard, not the full reaction to it. Stopping time isn’t a precise standard term here and could imply the total time to come to a stop rather than the initial reaction. So the term that best describes the time it takes a driver to react to a hazard is driving reaction times.