A crest vertical curve joins two gradients of +3% and 2% for a design speed of 80 km/h and the corresponding stopping sight distance of 120 m.The height of driver s eye and the object above the road surface are 1.20 m and 0.15 m respectively. The curve length (which is less than stopping sight distance) to be provided is

A crest vertical curve joins two gradients of +3% and 2% for a design

1.	A crest vertical curve joins two gradients of +3% and 2% for a design speed of 80 km/h and the corresponding stopping sight distance of 120 m.The height of driver s eye and the object above the road surface are 1.20 m and 0.15 m respectively. The curve length (which is less than stopping sight distance) to be provided is
A.	120 m
B.	152 m
C.	163 m
D.	240 m
Answer» C. 163 m

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