Civil Engineering - Highway Engineering - Discussion

44. 

If N is deviation angle, the length L, of a parabolic vertical curve for safe stopping distance S, is

[A].
[B].
[C].
[D].
[E]. both (a) and (b)

Answer: Option E

Explanation:

No answer description available for this question.

Deep said: (Jul 10, 2017)  
It's not 25.

It is 2S - 4.4/N if L<S
Then the answer is both a & b.

Anuj Nehra said: (Jul 13, 2017)  
option B should be 2S- not 25-.

Mohit Singh said: (Mar 15, 2018)  
Its A, since L>S.

Burhan said: (Sep 17, 2020)  
For overtaking/intermediate sight distance.

L = NS^2/9.6 (L>S).
L = 2S-9.6/NS (L<S).

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