As traveling speed increases from 45 mph to 60 mph, the probability of a fatality in a crash...

Prepare for the North Carolina Basic RADAR Operator Test. Study with flashcards, multiple choice questions, hints, and explanations. Get ready for your exam!

The correct choice highlights that as traveling speed increases from 45 mph to 60 mph, the probability of a fatality in a crash approximately doubles. This concept is supported by research in traffic safety that shows a direct relationship between speed and the severity of crashes. As speed increases, the kinetic energy involved in a crash also increases, leading to higher forces exerted on occupants during a collision.

At higher speeds, drivers have less time to react to obstacles or sudden changes in traffic conditions, which can contribute to the increased likelihood of fatal accidents. Specifically, studies indicate that for every 10 mph increase in speed, the risk of death in a crash can significantly climb—often cited as being around 100% more likely at higher speeds, making the choice of "doubles" particularly relevant in capturing the dramatic escalation in risk during these speed increases.

In contrast, the other options misrepresent the relationship between speed and crash fatality risk, either by suggesting no change at all or by inaccurately quantifying the change. Understanding this correlation is crucial for emphasizing the importance of speed limits and safe driving practices to reduce fatality risks on the roads.

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