Traffic signs manual: Chapter 4: Warning signs

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How sign faces are designed. This chapter does not include the various methods by which signs are constructed and mounted. It supersedes Local Transport Note ‘2/94 directional informatory signs interim design notes’, which was withdrawn in 1997. Chapter 8 (part 1) road works and temporary situations - design (ISBN 9780115530517) Introduction and an outline of the historical, functional and design aspects of signs. The chapter includes sections dealing with the positioning and mounting of signs. Chapter 2 (in draft) informatory signs Road markings serve a very important function in conveying to road users information and requirements which might not be possible using upright signs. They have the advantage that they can often be seen when a verge-mounted sign is obscured, and, unlike such signs, they can provide a continuing message. Chapter 6 traffic control (ISBN 9780115537448) Certain warning signs may be incorporated into directional signs; for further details see Chapter 7.

Any reference to "the Regulations" or "the Directions" is a reference to the Traffic Signs Regulations and General Directions 2002 applicable to England, Scotland and Wales. Reference to a diagram number or to a Schedule is a reference to a diagram or schedule in those Regulations. In Northern Ireland the relevant legislation is the Traffic Signs Regulations (Northern Ireland) 1997. Diagram and regulation numbering occasionally differs in the Northern Ireland Regulations; this is noted in the text where appropriate. Not all signs referred to in the text are included in the latter Regulations. References to directions are not applicable in Northern Ireland; where these are mentioned, advice should be sought from the Department for Regional Development's Roads Service Headquarters.

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Precise dimensions for all diagrams are indicated in the "P" series of working drawings available at www.gov.uk/working-drawings-for-traffic-signs. These also illustrate the permitted variants of symbols and show the correct layout of supplementary plates not illustrated in the Regulations. The "S" series of working drawings provides details of the more complex symbols and pictograms. Schedule 4 of the TSRGD 2016 covers upright signs that control waiting, loading and parking along a road. The traffic signs manual gives guidance on the use of traffic signs and road markings prescribed by the Traffic Signs Regulations and covers England, Wales, Scotland and Northern Ireland. Revised editions of the manual will be published here as they are released. The title of each working drawing reflects the respective Schedule, Part and Item in TSRGD 2016. The part of the title in parentheses refers to the TSRGD 2002 working drawing that it has replaced. Related documents Warning signs are used to alert drivers to potential danger ahead. They indicate a need for special caution by road users and may require a reduction in speed or some other manoeuvre.

Guidelines on the correct use of regulatory signs prescribed by the traffic signs regulations. These include prohibited turns, waiting and loading restrictions, bus and cycle lanes etc. There is also a comprehensive section dealing with the signing of speed limits. Chapter 4 warning signs (ISBN 9780115524110) The current advice on the design and use of directional informatory signs is published in Local Transport Note ( LTN) 1/94. Also available is the latest list of primary destinations in England (PDF, 64.4KB), which supersedes the information in LTN 1/94. Chapter 3 regulatory signs (ISBN 9780115529252)

The Traffic Signs Regulations and General Directions ( TSRGD) 2016 prescribes the design and condition of use for traffic signs on or near roads in England, Scotland and Wales. The Traffic Signs Manual is intended to give advice to traffic authorities and their agents on the correct use of signs and road markings. Mandatory requirements are set out in the current version of the Traffic Signs Regulations and General Directions; nothing in the manual can override these. The advice is given to assist authorities in the discharge of their duties under section 122 of the Road Traffic Regulation Act1984, but it is for traffic authorities to determine what signing they consider necessary to meet those duties.