Manual of Specifications and Standards for Four Laning of Highways (Second Revision)
IRC SP 84 (2019) is the comprehensive manual providing specifications and standards for the design, construction, and operation of four-lane highways in India. It covers geometric design, structural elements, intersections, safety features, and ancillary facilities to ensure efficient and safe highway development. This standard is essential for highway engineers, planners, and contractors involved in four-laning projects on national and state highways.
15Sections
940Clauses Indexed
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2019Edition
Roads and Bridges IRC- Indian road congress Category
IRC SP 84 (2019) is the comprehensive manual providing specifications and standards for the design, construction, and operation of four-lane highways in India. It covers geometric design, structural elements, intersections, safety features, and ancillary facilities to ensure efficient and safe highway development. This standard is essential for highway engineers, planners, and contractors involved in four-laning projects on national and state highways.
Audience
Who Uses This Standard
Highway Design Engineers
Transportation Planners
Civil Engineering Contractors
Road Safety Auditors
Government Highway Authorities
Project Managers for Highway Construction
Consultants in Road Infrastructure
Contents
Key Topics Covered
✓Geometric design criteria for four-lane highways
✓Right-of-way and lane width specifications
✓Median design and median openings
✓Shoulder and pavement width requirements
✓Design of grade-separated structures and intersections
✓Safety barriers and crash attenuators
✓Pavement strengthening and overlay guidelines
✓Traffic control and signage standards
✓Drainage and waterproofing provisions
✓Utility corridor and service road integration
✓Toll plaza layout and weighbridge specifications
✓Lighting and emergency facility installations
Structure
Table of Contents
1General▼
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2Geometric Design and General Features▼
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2.1General▼
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2.2Design Speed▼
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2.3Right-of-Way▼
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2.4Lane Width of Carriageway▼
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2.5Median▼
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2.6Shoulders▼
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2.7Roadway Width▼
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2.8Crossfall▼
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2.9Geometric Design▼
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2.10Lateral and Vertical Clearance at Underpasses▼
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2.11Lateral and Vertical Clearance at Overpasses▼
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2.12Access to Project Highway▼
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2.13Grade Separated Structures▼
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Frequently Asked
Popular Questions About IRC SP 84
?What are the recommended lane and shoulder widths for four-lane highways according to IRC SP 84?▼
Detailed answer not available.
?How does the standard address design requirements for grade-separated intersections and structures?▼
Detailed answer not available.
?What safety features and barriers are specified for four-lane highway construction?▼
Detailed answer not available.
?How should median openings and service road entries be designed to ensure traffic safety?▼
Detailed answer not available.
?What are the specifications for toll plaza layouts and static weigh bridges included in this standard?▼
Detailed answer not available.
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