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Highway Engineering - Engineering

Q1:

While calculating the sight distances, the driver's eye above road surface, is assumed

A 90 cm

B 100 cm

C 110 cm

D 120 cm

E 150 cm

ANS:D - 120 cm

SSD - Driver's eye Height - 1.2m / Height of object - 0.15m.
ISD - Driver's eye Height - 1.2m / Height of object - 1.2m.
OSD - Driver's eye Height - 1.2m / Height of object - 1.2m.