# Civil Engineering - Highway Engineering - Discussion

Discussion Forum : Highway Engineering - Section 2 (Q.No. 5)

5.

In an ideal transition curve, the radius of curvature

Discussion:

9 comments Page 1 of 1.
Biki said:
8 months ago

Ls = v^3/47CR.

Najaf said:
3 years ago

Clothiod & spiral same thing. L is inverse relations with radius.

Ajay Sharma said:
3 years ago

But it is mentioned that it is the ideal transition curve. The shape of ideal transition curve is spiral. So C is correct.

Dipuunku said:
4 years ago

Good explanation. Thanks @Madhu.

Samiran said:
4 years ago

If it's length then the option C is correct.

Silent said:
4 years ago

Its answer should be D.

Because:

Ls is inversely prop.to Rc (transition).

also, Ls = V^2 / R or V^3/CR.

Because:

Ls is inversely prop.to Rc (transition).

also, Ls = V^2 / R or V^3/CR.

Madhu said:
6 years ago

Radius of the transition curve is 0 at the tangent point and infinity at the starting of the circular curve. So it is varying through out its length. So the option should be B. In the question, it is stated radius of curvature not the length of the curve. So the above formula is not applicable here @Vikash.

Vikash said:
8 years ago

As ,Ls = v^3/CR.

Venky said:
1 decade ago

L = v^2/r or 2.7(v^2/R).

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