Manual of Specifications and Standards for Four Laning of Highways (Second Revision) 2019 Edition
The 2019 edition of IRC SP 84 serves as a detailed guide outlining the specifications and criteria essential for planning, constructing, and managing four-lane highways across India. It addresses aspects such as geometric design, structural components, intersections, safety measures, and supplementary facilities to promote safe and efficient highway infrastructure development. This manual is a vital resource for professionals engaged in four-laning projects on both national and state road networks.
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2019Edition
Roads and Bridges IRC- Indian road congress Category
The 2019 edition of IRC SP 84 serves as a detailed guide outlining the specifications and criteria essential for planning, constructing, and managing four-lane highways across India. It addresses aspects such as geometric design, structural components, intersections, safety measures, and supplementary facilities to promote safe and efficient highway infrastructure development. This manual is a vital resource for professionals engaged in four-laning projects on both national and state road networks.
Audience
Who Uses This Standard
Engineers specializing in highway design
Transportation and urban planners
Civil contractors for road construction
Auditors focusing on road safety
Government agencies overseeing highways
Construction project leaders for highways
Infrastructure consultants for roadways
Contents
Key Topics Covered
✓Design standards for four-lane highway geometry
✓Specifications for right-of-way and lane dimensions
✓Guidelines on median layout and openings
✓Requirements for shoulders and pavement widths
✓Design principles for grade-separated junctions
✓Installation of safety barriers and impact attenuators
✓Instructions for pavement strengthening and overlays
✓Standards for traffic management and signage
✓Drainage systems and waterproofing methods
✓Integration of utility corridors and service lanes
✓Layout criteria for toll plazas and weighbridge setups
✓Provisioning for lighting and emergency infrastructure
Structure
Table of Contents
1Introduction and Scope
2Geometric Design and Fundamental Characteristics
2.1Overview
2.2Design Speed Considerations
2.3Right-of-Way Requirements
2.4Carriageway Lane Widths
2.5Median Design
2.6Shoulder Specifications
2.7Total Roadway Width
2.8Cross Slope and Drainage
2.9Detailed Geometric Design
2.10Clearance Specifications for Underpasses
2.11Clearance Specifications for Overpasses
2.12Access Management to the Highway Corridor
2.13Design of Grade-Separated Structures
Frequently Asked
Popular Questions About IRC SP 84
?What lane and shoulder width dimensions are recommended for four-lane highways in this code?▼
Detailed answer not available.
?In what way does the standard specify design parameters for grade-separated intersections and related structures?▼
Detailed answer not available.
?Which safety features and protective barriers does the code prescribe for four-lane highway projects?▼
Detailed answer not available.
?How should median openings and entrances to service roads be designed to maintain traffic safety?▼
Detailed answer not available.
?What are the layout and specification requirements for toll plazas and fixed weighbridges as per this manual?▼
Detailed answer not available.
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