What is the degree of curve? Derive the relationship between radius and degree of curve.

1 Answer

Answer :

Degree of curve

The degree of the curve is the angle subtended at the center by a standard chord of 30 m length.


Relationship between radius and degree of curve.

Referring Fig

Let R = the radius of the curve in m.

D = the degree of cuve.

MN = the chord 30 m long.

P = Mid point of chord MN

In OMP, OM = R, PM = ½ MN = 15 m.

Then sin D/2 = PM/OM = 15/R



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