Deflection Angle in Surveying Curves Formulas

Deflection Angle is the angle between the first sub chord of curve and the deflected line with equal measurement of first sub chord from tangent point. And is denoted by Δ. Deflection Angle is usually measured using the Degree for Angle. Note that the value of Deflection Angle is always positive. Typically, the value of Deflection Angle lies in the range from 0 to 360.

Formulas to find Deflection Angle in Surveying Curves

fxDeflection Angle given Length of CurveGo

Surveying Curves formulas that make use of Deflection Angle

fxLength of CurveGo

fxRadius of Curve given LengthGo

fxLength of Curve if 30m Chord DefinitionGo

fxLength of Curve if 20m Chord DefinitionGo

fxTangent LengthGo

fxRadius of Curve given TangentGo

fxRadius of Curve given Long ChordGo

fxApex DistanceGo

fxRadius given Apex DistanceGo

fxMid OrdinateGo

List of variables in Surveying Curves formulas

fx Length of Curve Go

fx Curve Radius Go

FAQ

What is the Deflection Angle?

Deflection Angle is the angle between the first sub chord of curve and the deflected line with equal measurement of first sub chord from tangent point. Deflection Angle is usually measured using the Degree for Angle. Note that the value of Deflection Angle is always positive. Typically, the value of Deflection Angle lies in the range from 0 to 360.

Can the Deflection Angle be negative?

No, the Deflection Angle, measured in Angle cannot be negative.

What unit is used to measure Deflection Angle?

Deflection Angle is usually measured using the Degree[°] for Angle. Radian[°], Minute[°], Second[°] are the few other units in which Deflection Angle can be measured.

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