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CURVE RANGING, 800px-India-highway, Autovia_olivar, term circular,…
CURVE RANGING
TERM
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Beginning of curve, BC/T1
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TYPES
Horizontal Curve
Simple curve
circular curve of constant radius 
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reverse curve
two or more consecutive simple curves of the same of different radius with their centres on opposite sides of the common tangent.
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PURPOSE
to connect a straight line through the point of intersection which lies between two straight line to allow the movement to reverse slowly in the horizontal and vertical direction.
- Physical state of hilly land,
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USAGE
- Road construction
- Drainage construction
- Railway contruction
- reservoir contruction
- Dam construction
- etc
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