A pothole is a classic road hazard. It is an obstacle in the road that can cause trouble. If you're going fast in your car and you hit a pothole, it can actually blow out your tire. If you are running and you step in a pothole, it can break your foot. 

Road hazards are avoidable dangers in your path that cause trouble. This is true for drivers of automobiles and it's true for runners as well. Today we are going to talk about the top three road hazards for runners.