Manual of Specifications & Standards for Two-laning of Highways.pdf

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Two-laning of Highways through Public Private Partnership MANUAL OF SPECIFICATIONS & STANDARDS Planning Commission Government of India New Delhi
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IRC:SP:73-2007 This is a technical document which has been produced by the Indian Roads Congress. For any further technical clarifications please contact: Secretary General The Indian Roads Congress Sector 6, R.K. Puram New Delhi-110 022 Published by the Secretariat for the Committee on Infrastructure Planning Commission Yojana Bhavan Parliament Street New Delhi-110 001 Printed by Brijbasi Art Press Ltd. A-81, Sector-5, Noida - 201 203 Reprint: May 2010.
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Contents Foreword ix Preface xiii List of Symbols and Abbreviations xvi 1 General 3 2 Geometric Design and General Features 11 2.1 General 11 2.2 Design Speed 12 2.3 Right-of-Way 12 2.4 Lane width of Carriageway 13 2.5 Shoulders 13 2.6 Roadway Width 14 2.7 Camber or Crossfall 14 2.8 Horizontal Alignment 15 2.9 Sight Distance 17 2.10 Vertical Alignment 18 2.11 Lateral and Vertical Clearance at Underpasses 18 2.12 Lateral and Vertical Clearance at Overpasses 19 2.13 Service Roads 19 2.14 Grade separated Structures 19 2.15 Typical Cross Sections 20 2.16 Capacity of two lane highway 20 3 Intersections and Grade Separators 27 3.1 Intersections 27 3.2 At-grade Intersections 27 3.3 Grade Separated Intersections without ramps 29 3.4 Interchanges 30 iii pc/coi
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4 Road Embankment and Cuttings 35 4.1 General 35 4.2 Road Embankment 35 4.3 Roadway in Cutting 41 4.4 Soil Survey Investigations and Design Report 42 5 Pavement Design 47 5.1 General 47 5.2 Method of Design of Flexible Pavements 47 5.3 Method of Design of Rigid Pavements 48 5.4 Design of New Pavements 48 5.5 Design Traffic 49 5.6 Subgrade 50 5.7 Pavement Components and Materials 50 5.8 Performance Evaluation 52 5.9 Widening and Strengthening of Existing Road to Two Lane with Paved Shoulders 53 5.10 Design of Strengthening Treatment (Overlay) 55 5.11 Construction, Workmanship and Quality of Work 57 5.12 Premature Distress 57 5.13 Detailed Design Report 58 6 Roadside Drainage 63 6.1 General 63 6.2 Surface Drainage 63 6.3 Median Drainage 64 6.4 Drainage of High Embankment 64 6.5 Catch Water Drains 65 6.6 Sub-surface Drains 65 6.7 Internal Drainage of Pavement Structures 67 6.8 Survey, Investigations and Design Report 67 7 Design of Structures 71 7.1 General 71 7.2 Design Loading and Stresses 71 iv IRC:SP:73-2007 MANUAL OF SPECIFICATIONS AND STANDARDS
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7.3 Widening/reconstruction of existing structures 72 7.4 Structure Types 72 7.5 Hydrology 73 7.6 Sub-Surface Investigations 73 7.7 Culverts 73 7.8 Prestressing 74 7.9 Form Work 75 7.10 Foundation and Sub-structures 76 7.11 Approach Slab 78 7.12 Superstructure 78 7.13 Bearings 78 7.14 Expansion Joints 79 7.15 Wearing Coat 79 7.16 Earth Retaining Structures 80 7.17 River Training and Protective Works 80 7.18 Safety Barriers 80 7.19 Rail Road Bridges 81 7.20 Grade Separated Road Structures 82 7.21 Drainage 82 7.22 Structure in Marine Environment 82 7.23 Repairs and Strengthening 82 7.24 Design Report 83 8 Materials and Specifications for Structures 89 8.1 General 89 8.2 Structural Concrete 90 8.3 Cement 91 8.4 Coarse Aggregates 91 8.5 Sand/Fine Aggregates 91 8.6 Water 92 8.7 Concrete Admixture 92 8.8 Steel 94 8.9 Storage of Materials 95 8.10 Reports to be submitted 95 v
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