If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in meters is given by the expression

A) $$3.8{\text{ N}}{{\text{V}}^{\frac{1}{2}}}$$ B) $$3.8{\left( {{\text{N}}{{\text{V}}^3}} \right)^{\frac{1}{2}}}$$ C) $$0.38{\left( {{\text{N}}{{\text{V}}^3}} \right)^{\frac{1}{2}}}$$ D) $$0.38{\text{ N}}{{\text{V}}^{\frac{3}{2}}}$$

Answer & Solution

Correct Answer: Option C

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Question posted by Examveda

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2 Comments

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Ks Haya 5 years ago

To convert radians into degree multiply with 57.29
To convert Kmph into m/s multiple with 100/3600
= 1/3.6 .
Then, take C = 0.6m/s^3
Then finally we get L = 2 (√Nv^3 /C) = 2(√57.29Nv^3) ÷ √( 0.6 × 3.6) = 0.38(Nv^3) ^1/2. Ans. Thank you

Ankit Agrawal 7 years ago

Please explain

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If the design speed is V kmph and deviation angle is...

If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in meters is given by the expression

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