Traffic signs are an important part of the driver information system on streets and highways.
Signs provide drivers with the information which makes the driving tasks easier and safer. This fact leads some people to believe that whenever more signs are put up, the streets are safer. Traffic Engineers are frequently asked to place signs which confirm rules of the road or warn drivers of the obvious. This potential for the increase in unnecessary traffic signs has led to the establishment of nationwide standardized traffic signs and criteria for the installation of signs. Some of the most requested traffic signs are discussed below.