Imagine this scenario:
You're driving on the highway. Traffic is crawling at snail's pace. You don't see any accidents, lane closures, construction notices or other visual cues to explain the congestion. You think to yourself, "Why?? Why are we going SO SLOW??"
The infographic below might give you the beginning of an explanation. When traffic isn't due to outside factors, it could be due to drivers like you! Or better yet, skip the entire headache and consider an alternative transportation mode for your commute.