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Design of Road Tunnels

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Design of Road Tunnels Design of Road Tunnels DN-STR-03015 December 2000 DN Design Standards TRANSPORT INFRASTRUCTURE IRELAND (TII) PUBLICATIONS About TII Transport Infrastructure Ireland (TII) is responsible for managing and improving the country’s national road and light rail networks. About TII Publications TII maintains an online suite of technical publications, which is managed through the TII Publications website. The contents of TII Publications is clearly split into ‘Standards’ and ‘Technical’ documentation. All documentation for implementation on TII schemes is collectively referred to as TII Publications (Standards), and all other documentation within the system is collectively referred to as TII Publications (Technical). This system replaces the NRA Design Manual for Roads and Bridges (NRA DMRB) and the NRA Manual of Contract Documents for Road Works (NRA MCDRW). Document Attributes Each document within TII Publications has a range of attributes associated with it, which allows for efficient access and retrieval of the document from the website. These attributes are also contained on the inside cover of each current document, for reference. For migration of documents from the NRA and RPA to the new system, each current document was assigned with new outer front and rear covers. Apart from the covers, and inside cover pages, the documents contain the same information as previously within the NRA or RPA systems, including historical references such as those contained within NRA DMRB and NRA MCDRW. Document Attributes TII Publication Title Design of Road Tunnels TII Publication DN-STR-03015 Number Activity Design (DN) Document Set Standards Stream Structures (STR) Publication Date December 2000 Document 03015 Historical BD 78 Number Reference NRA DMRB and MCDRW References For all documents that existed within the NRA DMRB or the NRA MCDRW prior to the launch of TII Publications, the NRA document reference used previously is listed above under ‘historical reference’. The TII Publication Number also shown above now supersedes this historical reference. All historical references within this document are deemed to be replaced by the TII Publication Number. For the equivalent TII Publication Number for all other historical references contained within this document, please refer to the TII Publications website. National Roads Authority Volume 2 Section 2 Design Manual for Roads and Bridges Part 9 BD 78/99 Addendum NRA ADDENDUM TO BD 78/99 DESIGN OF ROAD TUNNELS Standard BD 78/99 – Design of Road Tunnels is applicable in Ireland with the following amendments: GENERAL 1. This Standard provides specification requirements for use in public purchasing contracts. It does not lay down legislation requirements for products and materials used in road construction in Ireland. 2. At several locations: For: “Overseeing Organisation” Read: “National Roads Authority”; For: “Technical Approval Authority” or “TAA” Read: “National Roads Authority”; For: “Technical Approval Authority of the Overseeing Organisation” Read: “National Roads Authority”; For: “highway” Read: “road”; For: “BD2 (DMRB 1.1)” Read: “NRA BD2 (NRA DMRB 1.1)”; For: “trunk road” Read: “national road”; For: “heavy goods vehicles” or “HGVs” Read: “Heavy Commercial Vehicles”; For: “Approval in Principle (AIP)” or “AIP” Read: “Preliminary Approval”; For: “Police” Read: “Garda”; For: “TD9 (DMRB 6.1.1)” Read: “NRA TD9 (NRA DMRB 6.1.1)”; For: “TD27 (DMRB 6.1.2)” Read: “NRA TD27 (NRA DMRB 6.1.2)”; For: “the Secretary of State” Read: “the Minister for the Environment”; December 2000 1 National Roads Authority Volume 2 Section 2 Design Manual for Roads and Bridges Part 9 BD 78/99 Addendum For: “Traffic Signs Regulations and General Directions” or “Traffic Signs Regulations” Read: “Road Traffic (Signs) Regulations”; For: “Maintaining Agent” Read: “Tunnel Operating Authority”. SPECIFIC 1. Introduction 1.1 Page 1/1, Paragraph 1.1, line 4: For: “United Kingdom” Read: “Ireland.” 1.2 Page 1/1, Paragraph 1.6, line 7 and Paragraph 1.9, line 2: For: “under preparation.” (two locations) Read: “under preparation by the UK Highways Agency.” 1.3 Page 1/1, Paragraph 1.8, line 9: After “under preparation” insert: “by the UK Highways Agency. These specifications are for tunnels in the United Kingdom. However, they may be used as the basis for a specification for tunnels in Ireland.” 1.4 Page 1/2, Paragraph 1.14, line 11: Delete: “of BD 53 (DMRB 3.1.6)”. 1.5 Page 1/3, Paragraph 1.17, line 4: Delete second, third and fourth sentences “Reference should … Act 1988.” and replace with: “Reference should be made to the latest relevant Irish and EEC legislation, IS, ISO, BS or other EC member states’ Standards, and relevant NRA and Department of Environment documents, at an early stage in the tunnel planning process. A special order/scheme may be required for a national road/motorway in tunnel under a navigable watercourse. Tolled tunnels under estuaries may be controlled by special legislation, e.g. the UK Dartford-Thurrock Crossing Act 1988.” 1.6 Page 1/3, Paragraph 1.18: Delete Paragraph 1.18 and replace with: “1.18 This Standard should be used forthwith for all schemes for the construction and/or improvement of national roads. The Standard should be applied to the design of schemes already being prepared unless, in the opinion of the National Roads Authority, application would result in significant additional expense or delay progress. In such cases, Design Organisations should confirm the application of this Standard to particular schemes with the National Roads Authority.” December 2000 2 National Roads Authority Volume 2 Section 2 Design Manual for Roads and Bridges Part 9 BD 78/99 Addendum 2. Planning, Safety, General Design Considerations 2.1 Page 2/1, Paragraph 2.6, line 1: For: “Value Management and Value Engineering, Risk Analysis and Management (Value for Money Manual : Highways Agency: June 1996) shall be used” Read: “Value management and value engineering, risk analysis and management (for example, Value for Money Manual : Highways Agency: June 1996) should be used”. 2.2 Page 2/1, Paragraph 2.8(i), line 6: For: “This type of tunnel operation includes tunnels built under Acts of Parliament such as toll tunnels and the major estuarine crossings (Clyde, Dartford, Mersey, Tyne etc).” Read: “This type of tunnel operation includes tunnels such as toll tunnels and major estuarine crossings (e.g. the UK Clyde, Dartford, Mersey and Tyne tunnels).” 2.3 Page 2/2, Paragraph 2.10, line 10: Delete final sentence: “For Highways Agency……. Network Area Manager.” 2.4 Page 2/2, Paragraph 2.12, line 7: Delete third sentence “For UK … (DMRB1.1).”and replace with: “For road tunnels schemes in Ireland, and also where a local Road Authority requires, the NRA will be the appropriate body responsible for granting preliminary approval, see NRA BD 2 (DMRB 1.1).” 2.5 Page 2/2, Paragraphs 2.14 to 2.18: [Note: the above paragraphs provide detailed advice on safety procedures that should be used in the UK. For use in Ireland, the Design Organisation shall agree with the NRA the procedures and legislations to be followed.] 2.6 Page 2/2, Paragraph 2.15, line 2: For: “HD 19 (DMRB 5.2.2) and accompanying advice in HA 42 (DMRB 5.2.3).” Read: “NRA HD 19 (NRA DMRB 5.2.2) and accompanying guidance in NRA HA 42 (NRA DMRB 5.2.3)”. 2.7 Page 2/5, Paragraph 2.37, line 14: For: “Traffic Safety Measures and Signs for Roadworks and Temporary Situations: SO” Read: “Signs for Roadworks”. 2.8 Page 2/7, Third Heading (after Paragraph 2.54), line 1: For: “ Tunnel Service Buildings, Tunnel Portals: Land and Royal Fine Art Commission/Commission for Architecture and the Built Environment Requirements ” Read: “ Tunnel Service Buildings and Tunnel Portals ”. 2.9 Page 2/7, Paragraph 2.56: Delete Paragraph 2.56 and replace with: “2.56 Service Buildings are part of the complete tunnel and road scheme and are not treated as a separate development. The buildings and tunnel portal areas, particularly for a major scheme or one in a National Heritage Area or near buildings of architectural or historic interest or conservation areas may need special consideration. The form and appearance of such service buildings and tunnel portals should be discussed at an early stage with both the National Roads Authority and the Local Roads Authority.” December 2000 3 National Roads Authority Volume 2 Section 2 Design Manual for Roads and Bridges Part 9 BD 78/99 Addendum 2.10 Page 2/9, Paragraph 2.70, line 1: Delete first sentence “BD2 … equipment.” and replace with: “2.70 NRA BD 2 (NRA DMRB 1.1) outlines the requirements for technical approval of the road tunnel structure and equipment. Details shall be agreed with the National Roads Authority.” 2.11 Page 2/9, Paragraph 2.71, line 14: Delete: “IAN 15 (DMRB 2.1) and”. 2.12 Page 2/10, Paragraph 2.77, line 9: Delete last sentence “Year 2000 … (BSI).” 2.13 Page 2/11, Paragraph 2.80: Delete Paragraph 2.80 and replace with: “2.80 Highway loadings, over and through a road tunnel, are as described in BD 37 (DMRB 1.3). For cases such as transverse spanning, suspended road decks and road slabs supported on the ground, where it is not possible to determine the effective loading lengths for HA udl (uniformly distributed loading), then the vehicle loadings shall be agreed with the National Roads Authority. The NRA will provide details of any Abnormal Indivisible Loading (AIL) vehicles to be included in design or assessment.” 3. Operational Classification of Safety Facilities for the Road Users 3.1 Page 3/4, Paragraph 3.28, line 8: For: “Highways Agency Value for Money Manual.” Read: “UK Highways Agency Value for Money Manual.” 4. Geometric Design 4.1 Page 4/1, Paragraph 4.6, line 3, and Page 4/5, Table 4.1, Column 3, Rows 2 & 3: For: “TD 20 (DMRB 5.1)” Read: “TA 46 (DMRB 5.1.3) and TA 79 (DMRB 5.1)”.
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