Question
Download Solution PDFFor WBM roads in localities of heavy rainfall, the recommended value of camber is:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept
Camber/Cant: It is the cross slope provided to raise the middle of the road surface in the transverse direction to drain off rainwater from the road surface.
The objectives of providing camber are as follows:
- Surface protection especially for gravel and bituminous roads and hence making it more durable
- Sub-grade protection by proper drainage and hence to make the surface of pavement more impervious
- Quick-drying of pavement which in turn increases safety
The main objective of providing camber will be to drain off rainwater from the road surface, as quickly as possible. As rest options are the ultimate result of the quick drainage of water from the pavement.
Important Points:
Camber to be provided for different types of pavement are as follows:
|
Type of pavement |
Heavy Rain |
Light Rain |
|
Cement Concrete and high type bituminous surface |
1 in 50 |
1 in 60 |
|
Thin Bituminous surface |
1 in 40 |
1 in 50 |
|
WBM, gravel pavement |
1 in 33 |
1 in 40 |
|
Earthen roads |
1 in 25 |
1 in 33 |
Last updated on Jun 4, 2025
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