What happens to crash frequency when traffic volume increases?

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Study for the Road Safety Professional Level 1 Exam. Enhance your knowledge with multiple-choice questions and explanations. Prepare effectively and succeed!

Multiple Choice

What happens to crash frequency when traffic volume increases?

Explanation:
Increasing traffic volume raises crash frequency because more vehicles on the road create greater exposure and more opportunities for vehicle interactions that can lead to crashes. Even if each driver’s individual risk stays similar, the total number of crashes grows with the number of cars sharing the roadway. In busier conditions, closer following, more frequent lane changes, and merging maneuvers add to the likelihood of rear-end and other types of crashes. So the overall trend is that more traffic leads to more crashes. The other options don’t align with this exposure-increase reality.

Increasing traffic volume raises crash frequency because more vehicles on the road create greater exposure and more opportunities for vehicle interactions that can lead to crashes. Even if each driver’s individual risk stays similar, the total number of crashes grows with the number of cars sharing the roadway. In busier conditions, closer following, more frequent lane changes, and merging maneuvers add to the likelihood of rear-end and other types of crashes. So the overall trend is that more traffic leads to more crashes. The other options don’t align with this exposure-increase reality.

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