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Highway Engineering

Q1: If L is the length of a moving vehicle and R is the radius of curve, the extra mechanical width b to be provided on horizontal curves,

A

B

C

D

E

ANS:C -

e = Wm + Wp.

Wm=mechanical widening
= l^2/2R.

If no of lanes given then, Wm = nl^2/2R,
Wp = phychological widening,
= Vkmph/9.5 √ R,
Widening = Wm + Wp.



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