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 It supersedes Local Transport Note ‘2/94 directional informatory signs interim design notes’, which was withdrawn in 1997.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) 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.

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.All traffic signs (including road markings) placed on a highway or road to which the public has access must be either prescribed by Regulations or authorised by the Secretary of State for Transport, the Department for Regional Development (Northern Ireland), the Scottish Government or the Welsh Government as appropriate. Care should be taken to ensure that no non-prescribed sign is used unless it has been authorised in writing. Failure to do so may leave an authority open to litigation. Except in the case of certain signs to indicate temporary obstructions or placed by the police in an emergency, signs may be placed only by or with the permission of the traffic authority. 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. This reprinted edition includes 4 minor amendments and addition of Appendix A, note 7. Chapter 5 road markings (ISBN 9780115524790) The Traffic Signs Manual is applicable in England, Northern Ireland, Scotland and Wales. References to “the Secretary of State“ should therefore be interpreted as referring to the Secretary of State for Transport, the Department for Regional Development (Northern Ireland), the Scottish Government or the Welsh Government as appropriate.

Chapter 2 is currently a work in progress. It will contain advice on the design and use of directional signs, and also other informatory signs such as home zone signs. Due to the amount of work required to complete chapter 2, it is intended that interim advice on individual topics will be made available as and when completed. Certain warning signs may be incorporated into directional signs; for further details see Chapter 7.

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)