What is the correct definition of perception distance?

Perception distance is defined as the distance traveled by a vehicle from the moment the driver first sees a hazard until the driver begins to react to that hazard. This concept emphasizes the importance of a driver’s awareness and recognition of potential dangers on the road.

When a driver identifies a hazard, they may take a moment to process what they see, which directly influences the perception distance. The longer it takes for a driver to recognize a danger, the farther the vehicle continues to move before any action is initiated. Understanding this distance is crucial for safe driving, as it highlights the need for drivers to remain vigilant and attentive at all times to reduce reaction time and avoid accidents.

In contrast, other options refer to different concepts related to stopping distance and driver reaction phases, which do not encapsulate the specific definition of perception distance.