What specific driver trait, like how quickly someone sees danger and acts, is key to setting safe stopping distances?

The specific driver trait that is key to setting safe stopping distances, directly encompassing how quickly someone sees danger and acts, is reaction time. Reaction time is the precise duration from when a driver perceives a hazard or event to the moment they initiate a physical response, such as applying the brakes. This critical trait is fundamentally composed of three sequential phases: perception time, decision time, and volition (or execution) time. Perception time is the initial period required for a driver to notice an unexpected event, recognize it as a potential hazard, and for that information to be processed by their brain. For instance, seein....