Camber
Camber or cant is the cross slope provided to
raise middle of the road surface in the transverse direction to drain of rain
water from road surface. The objectives of providing camber are:
_ Surface protection especially for gravel and bituminous
roads _ Sub-grade protection by proper drainage
_ Quick
drying of pavement which in turn increases safety
Too steep slope is undesirable for it will erode the surface.
Camber is measured in 1 in n or n% (Eg. 1 in 50 or 2%) and the value depends on
the type of pavement surface. The values suggested by IRC for various
categories of pavement is given in Table .
Types of
cambers.
The
common types of camber are parabolic, straight, or combination of them
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