NRA TA 85 Guidance on Minor Improvements to National Roads

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Chapter 3 Design Standards Cross-Section • Cross-section should comply with Table 6/1 of <strong>NRA</strong> TD 9 “Road Link Design” where possible & should also consider the future route strategy for the existing road. • Any reduction in cross-section shall be recorded as a Departure. Example from Chapter 4 of <strong>NRA</strong> <strong>TA</strong> <strong>85</strong>/11
Chapter 3 Design Standards Overtaking Value • Provide the best improvement to overtaking opportunities that can be economically devised • Principle objective of some minor improvements may be to provide enhanced overtaking opportunity (achieve the minimum overtaking value specified in Table 7/3 of <strong>NRA</strong> TD 9 “Road Link Design”. • Shall ensure that overtaking and non-overtaking sections clearly identified
Page 1 and 2: NRA TA</st
Page 3 and 4: What does it apply to? • Minor Im
Page 5 and 6: Definitions Maintenance Schemes “
Page 7 and 8: Minor Improvements (contd.) Example
Page 9 and 10: Who is the Road Authority? • For
Page 11 and 12: Contents of The Preliminary Design
Page 13 and 14: Preliminary Design Report
Page 15 and 16: Chapter 3 Design Standards Horizont
Page 17 and 18: Chapter 3 Design Standards Horizont
Page 19: Chapter 3 Design Standards Vertical
Page 23 and 24: Chapter 3 Design Standards Junction
Page 25 and 26: Chapter 3 Design Standards Safety B
Page 27 and 28: Chapter 3 Design Standards Safety B
Page 29 and 30: Chapter 3 Design Standards Drainage
Page 31 and 32: Chapter 3 Design Standards Non Moto
Page 33 and 34: Example 1: N72 Cappagh Bends • Re

NRA TA 85 Guidance on Minor Improvements to National Roads

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