Types of curves
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Transcript of Types of curves
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CURVES
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CurveA line which is not straight with no sharp edges is called a curve. It is a smoothly flowing line.
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Types of Curves
1.Horizontal Curve
2.Vertical Curve
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Horizontal CurveA horizontal curve provides a transition between two tangent strips of roadway, allowing a vehicle to negotiate a turn at a gradual rate rather than a sharp cut.
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Types of Horizontal
Curves1.Simple Curve
2.Compound Curve
3.Reverse Curve
4.Transition Curve
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SIMPLE CURVEA simple arc provided in the road to impose a curve between the two straight lines.
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COMPOUND CURVECombination of two simple curves combined together to curve in the same direction.
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REVERSE CURVECombination of two simple curves combined together to curve in the opposite direction.
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TRANSITION CURVEA curve of constantly changing radius, used to connect a circular arc to a straight line.
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Vertical CurveA vertical curve provides a transition between two sloped roadways, allowing a vehicle to negotiate the elevation rate change at a gradual rate rather than a sharp cut.
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Types of Vertical Curve
1.Sag Curve
2.Crest Curve
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SAG CURVESag Curves are those which change the alignment of the road from uphill to downhill.
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CREST CURVECrest Curves are those which change the alignment of the road from downhill to uphill.
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THE END
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THANK YOU