Civil Engineering - Highway Engineering - Discussion

Discussion Forum : Highway Engineering - Section 6 (Q.No. 33)
33.
An ideal vertical curve is
true spiral
cubic spiral
cubic parabala
lamniscate
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
28 comments Page 3 of 3.

Sanjay sahu said:   8 years ago
What about cubic spiral?

Sonu said:   8 years ago
It is parabolic.

Burhan said:   8 years ago
You are right @Amir.

Shubham suroliya said:   8 years ago
Square parabola is the Right answer.

Amir Suhail said:   9 years ago
Ideal vertical curve will be circle because centrifugal acceleration will be constant and thus no jerk or discomfort will be felt by passenger.

Raghav said:   9 years ago
@Anup.

Because cubic parabola is transition curve, not vertical curve. And it is recommended by IRC. Ideal transition curve is true spiral.

Anup said:   9 years ago
Why not cubic parabola?

Virender said:   9 years ago
What is the ideal shape of the vertical curve?


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