Road signs are our guides through the process of driving. Their importance is constantly undervalued. Think about it for one minute. Couldn't a sign warning you that there is a traffic light ahead keep you from running that traffic light? Or, a sign that warns you there is a sharp turn ahead? Either one of these signs could save a person's life. One could prevent them from running a red light while the other may keep them from running off a cliff. Yes, that is significant. As a beginning driver or maybe one who is not familiar with a new town, signs are extremely important. So, how do they work?