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The Highest point on a carriage way is called
Camber
Crown
Gradient
Superelevation
Crown
The highest point on the carriage way, typically located along the centerline in a standard road cross-section, is known as the crown. It is the central peak from which the surface slopes downward in both directions to facilitate surface drainage.
The highest point on the carriage way, typically located along the centerline in a standard road cross-section, is known as the crown. It is the central peak from which the surface slopes downward in both directions to facilitate surface drainage.
Camber=n1тАЛ тАФ where n is the ratio of horizontal to vertical distance (e.g., 1 in 50)
The crown is designed to ensure that rainwater does not stagnate on the road surface. By creating a high point at the center, the road profile forces water to flow towards the edges (shoulders or curbs) where it can be collected by drains. The slope created by this central high point is referred to as camber or cross-slope.
The crown is essential for road safety by preventing hydroplaning and protecting pavement structural integrity from water infiltration.
The shape of the crown can be parabolic, straight-line, or a combination of both.
On curves with superelevation, the crown is often eliminated to provide a unidirectional cross-slope.
Effective drainage of rainwater
Increases the lifespan of pavement by preventing moisture-related distress
Increases structural complexity at the center of the road
Requires careful alignment during construction to ensure uniform slope
Highways and Expressways
Urban roads and streets
Airport runways
Camber is the transverse slope provided, while the Crown is the specific geometric point or line of highest elevation.
Gradient refers to the longitudinal slope of the road, which is different from the transverse slope (camber).
B is correct тАФ The crown is the peak elevation point of the carriage way surface.
Remember that 'Camber' refers to the slope itself, while 'Crown' is the specific location/peak. In exams, distinguish between longitudinal gradients (uphill/downhill) and transverse gradients (camber).
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