Signs can provide important information that can improve road safety.
By letting people know what to expect, there is a greater chance that they will react and behave appropriately. For example, giving motorists advanced warnings of upcoming pedestrian crossings or that they are entering a traffic calmed area will enable them to modify their speeds. Sign use and movement should be done judiciously, as overuse breeds noncompliance and disrespect. Warning signs can provide helpful information, especially to motorists and pedestrians unfamiliar with an area. Some examples of signs which affect pedestrians include pedestrian warning signs, motorists warning signs, NO TURN ON RED signs, and guide signs.