VOLUME 2 HIGHWAY STRUCTURES: DESIGN (SUB …

1 August 2017 DESIGN MANUAL FOR ROADS AND BRIDGESVOLUME 2 HIGHWAY STRUCTURES: DESIGN (SUB-STRUCTURES AND special STRUCTURES) MATERIALSSECTION 2 special STRUCTURESPART 1BD 94/17 DESIGN OF MINOR STRUCTURESSUMMARYThis Standard covers the DESIGN of minor HIGHWAY structures, including: lighting columns; cantilever masts for traffic signals and/or speed cameras; CCTV masts; fixed vertical road traffic incorporates the provisions of BS EN 40, BS EN 12899, and supersedes BD 94 FOR USE1. Remove BD 94/07 from VOLUME 2, section 2, Part Insert BD 94/17 into VOLUME 2, section 2, Part Please archive this sheet as : A quarterly index with a full set of VOLUME Contents Pages is available separately from The Stationery Office MANUAL FOR ROADS AND BRIDGESS ummary: This Standard covers the DESIGN of minor HIGHWAY structures, including: lighting columns; cantilever masts for traffic signals and/or speed cameras; CCTV masts.

2 Fixed vertical road traffic incorporates the provisions of BS EN 40, BS EN 12899, and supersedes BD 94 of Minor StructuresBD 94/17 VOLUME 2, section 2, Part 1 HIGHWAYS ENGLANDTRANSPORT SCOTLANDLLYWODRAETH CYMRUWELSH GOVERNMENTDEPARTMENT FOR INFRASTRUCTURE NORTHERN IRELANDA ugust 2017 Registration of AmendmentsVolume 2 section 2 Part 1 BD 94/17 Amend NoPage NoSignature & Date of incorporation of amendmentsAmend NoPage NoSignature & Date of incorporation of amendmentsREGISTRATION OF AMENDMENTSA ugust 2017 Registration of AmendmentsVolume 2 section 2 Part 1 BD 94/17 Amend NoPage NoSignature & Date of incorporation of amendmentsAmend NoPage NoSignature & Date of incorporation of amendmentsREGISTRATION OF AMENDMENTSA ugust 2017 DESIGN MANUAL FOR ROADS AND BRIDGESVOLUME 2 HIGHWAY

3 STRUCTURES: DESIGN (SUB-STRUCTURES AND special STRUCTURES), MATERIALSSECTION 2 special STRUCTURESPART 1BD 94/17 DESIGN OF MINOR STRUCTURESC ontentsChapter1. Introduction2. General Principles3. Dimensional Limitations4. Use of British Standards and Standards Issued by Overseeing Organisations5. Design6. Fibre Reinforced Polymer Composite Lighting Columns7. Door Openings8. Wall Mounted Brackets9. Attachments10. Flange Plate Connections Between structure and Foundation11. Foundations12. References13. ApprovalAnnex A Limit States for Cantilever MastsAnnex B Fatigue Checks of Steel Structures and Guidance for Weld ClassificationAnnex C Detailed DESIGN of Flange PlatesAnnex D Determination of Shape Coefficients by TestingAugust 20171/1 Chapter 1 IntroductionVolume 2 section 2 Part 1 BD 94/171.

4 This Standard covers the use of the relevant parts (as defined herein) of BS EN 40 for the structural DESIGN of: lighting columns made from concrete, steel, aluminium, and fibre reinforced polymer composite (FRPC also known as FRP); cantilever masts for traffic signals and/or safety cameras (hereafter called cantilever masts) made from steel; closed circuit television (CCTV) masts made from steel; fixed vertical road traffic sign/signal posts; high masts; other mast type :(i) Guidance and background information in the use of BS EN 40-3-1 and BS EN 40-3-3 for the DESIGN of lighting columns is given in PD6547: 2004.(ii) This Standard covers the use of The Institution of Lighting Professionals Professional Lighting Guide 07, High Masts for Lighting and CCTV, 2013 Edition, Sections 1 and 2 (ILP PLG07) for the DESIGN of CCTV masts.

5 This Guide was originally developed for high mast lighting and has been revised to include CCTV masts as they have similar features.(iii) Requirements for the DESIGN of fixed vertical road signs are given in BS EN 12899: Part 1. These requirements are supplemented by this sets out the Overseeing Organisation s particular requirements where these augment, or are additional to those given in the British Standard. In addition, the Standard gives the requirements for lighting columns made essentially from glass fibre reinforced plastic (FRP or FRPC). The technical basis for the clauses on FRPC is limited and it may become necessary in due course to review the requirements, on the basis of their performance in materials other than concrete, steel, aluminium or FRPC are used for other minor structures a departure from standards shall be sought from the Technical Approval This Standard sets out the structural DESIGN requirements for the following minor HIGHWAY structures for use on trunk roads including motorways.

6 Lighting columns and wall mounted brackets made from concrete, steel, aluminium, concrete and FRPC, including lighting columns mounted on other structures, on bridges;Chapter 1 Introduction1/2 August 2017 Chapter 1 IntroductionVolume 2 section 2 Part 1 BD 94/17 steel CCTV masts mounted on foundations in the ground. The requirements for CCTV masts mounted on other structures eg gantries are outside the scope of this Standard; cantilever masts made from steel for traffic signals and/or speed cameras. This Standard excludes the DESIGN requirements for permanent and temporary cantilever sign and signal gantries for which BD 51 (DMRB ) shall be used; fixed vertical road traffic sign/signal posts.

7 This Standard excludes the electronic DESIGN requirements of certain traffic signs, as defined in BS EN 12899-Part 1; high masts; other mast type :(i) The structural requirements for lattice structures are outside the scope of this Standard; refer to BS EN 1993-3-1:2006 or any other relevant standard.(ii) The structural requirements for passively safe structures should comply with this Standard but the passive safety characteristics of such structures are dealt with in EN 12767.(iii) In Northern Ireland this Standard applies to minor structures on all classes of Where there is a requirement in this document for compliance with any part of a British Standard or other technical specification, that requirement may be met by compliance with:(a) a standard or code of practice of a national standards body or equivalent body of any EEA state or Turkey;(b) any international standard recognised for use as a standard or code of practice by any EEA state or Turkey;(c) a technical specification recognised for use as a standard by a public authority of any EEA state or Turkey.

8 Or(d) a European Technical Assessment issued in accordance with the procedure set out in regulation (EU) No 305/2011; provided that the relevant standard imposes an equivalent level of performance and safety provided for by the stated Standard or technical specification. EEA State means a state which is a contracting party to the European Economic Area Agreement. British Standard means any standard published by the British Standards Institution including adopted European or other international 20171/3 Chapter 1 IntroductionVolume 2 section 2 Part 1 BD 94 This Standard should be used forthwith on all schemes for the construction and improvement of trunk roads, including motorways, currently being prepared, provided that, in the opinion of the Overseeing Organisation, this would not result in significant additional expense or delay progress.

9 DESIGN Organisations should confirm its application to particular schemes with the Overseeing Organisation. Where the Overseeing Organisation s contract documents are based on the Specification for HIGHWAY Works (MCHW 1) use of this Standard is mandatory. In Northern Ireland this standard should be used on all roads. Where this Standard duplicates or covers requirements in existing standards during a period of co-existence, it shall take precedence unless otherwise agreed with the Overseeing 2017 Chapter 1 IntroductionVolume 2 section 2 Part 1 BD 94/17 August 20172/1 Chapter 2 General PrinciplesVolume 2 section 2 Part 1 BD 94/172.

10 GENERAL The siting of minor structures shall accord with the TDs and TAs as shown in Table 1 as relevant to the structure considered. This shall include consideration of visibility by the approaching columns Cantilever masts CCTV masts Road traffic signs Other mast type structures * * Table 1: TDs and TAsNote: Where possible cantilever masts should not be located on under-bridges.* these may be applicable depending on type of All elements of minor structures shall comply with the clearances specified in TD 27 (DMRB ) after allowing for deflections due to dead, live, wind and High Vehicle buffeting The clear new construction headroom for routes other than high load routes shall be 5,700 mm minimum, as defined in TD 27 Table 8 (DMRB ) for Footbridges and Sign/Signal Gantries.