Why know your traffic signs?
Clear and efficient signing is an essential part of highway and traffic engineering and a road with poor signing or with badly maintained signs is an unsatisfactory road.
The types of signs and carriageway markings etc, available for use are prescribed by Regulations. Limiting the number of types of sign available assists in their quick recognition as does uniformity of shape, colour and lettering for each type. It also makes available to highway authorities a set of standard signs and saves them the labour of design. It aids the courts in giving the same meaning to standard signs.
The Traffic Signs Regulations and General Directions 2002 (TSRGD) set out the rules for traffic signs, traffic lights and road markings that can be used in England, Scotland and Wales.