Tentative Guidelines on the Provision of Speed Breakers for Control of Vehicular Speeds on Minor Roads
IRC 99 (1988) provides tentative guidelines for the design, placement, and maintenance of speed breakers on minor roads in India to control vehicular speeds and enhance safety. It is intended for use on residential streets, minor roads, and accident-prone locations where speed reduction is necessary, offering specifications that balance vehicle comfort and effective speed control.
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1988Edition
Roads and Bridges IRC- Indian road congress Category
IRC 99 (1988) provides tentative guidelines for the design, placement, and maintenance of speed breakers on minor roads in India to control vehicular speeds and enhance safety. It is intended for use on residential streets, minor roads, and accident-prone locations where speed reduction is necessary, offering specifications that balance vehicle comfort and effective speed control.
Audience
Who Uses This Standard
Traffic engineers
Road safety planners
Highway design engineers
Municipal road authorities
Urban planners
Transport department officials
Civil engineering consultants
Contents
Key Topics Covered
✓Purpose and justification for speed breakers
✓Design specifications for rounded hump speed breakers
✓Preferred crossing speeds and vehicle comfort considerations
✓Placement criteria including intersections, curves, and built-up areas
✓Visual and tactile warning features including markings and signage
✓Recommended dimensions for kerbed and unkerbed roads
✓Spacing between multiple speed breakers
✓Maintenance guidelines for speed breakers
✓Impact on different vehicle types including trucks and motorcycles
✓Use limitations on major roads and highways
✓Safety considerations near bridges, culverts, and railway crossings
Structure
Table of Contents
1Introduction▼
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2Need for Speed Breakers▼
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3Situations Justifying Speed Breakers▼
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4Locations for Speed Breaker Installation▼
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5Design of Speed Breakers▼
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6Placement of Speed Breakers▼
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7Warning Signs and Markings▼
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8Maintenance▼
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9Special Considerations▼
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10Concluding Recommendations▼
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Frequently Asked
Popular Questions About IRC 99
?What are the recommended dimensions and shape for speed breakers under IRC 99?▼
Detailed answer not available.
?Where should speed breakers be installed on minor roads according to this standard?▼
Detailed answer not available.
?How does IRC 99 address the impact of speed breakers on different vehicle types?▼
Detailed answer not available.
?What signage and markings are required to warn drivers of upcoming speed breakers?▼
Detailed answer not available.
?What maintenance practices are recommended to ensure the effectiveness of speed breakers?▼
Detailed answer not available.
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