Highway Engineering

Q1: The perpendicular offset from the tan-get to the central point of the circular curve, is

A R sin θ/2

B R cos θ/2

C R (1 - cos θ/2)

D R (1 - sin θ/2)

E none of these.

ANS:C - R (1 - cos θ/2)

It is talking about apex distance and it should be R(secθ/2 -1).



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