A study by researchers at Virginia Commonwealth University found that the second-leading cause of distraction-related crashes (behind fatigue) was “looking at crashes, other roadside incidents, traffic, or other vehicles.”
This is from the very interesting book Traffic: Why We Drive the Way We Do (and What It Says About Us).
Related posts:
What should you say to the police when you get pulled over for speeding?
What is a cause in more accidents: eating while driving or talking on the phone while driving?
Does the type of conversation you’re having on your cellphone affect your driving?