Civil Engineering - Highway Engineering - Discussion
Discussion Forum : Highway Engineering - Section 6 (Q.No. 33)
33.
An ideal vertical curve is
Discussion:
28 comments Page 1 of 3.
Dharshini naidu said:
6 years ago
There are 2 curves in vertical alignment:
1) Valley curves.
2) Summit curves.
The shape of the valley curve is a cubic parabola.
The shape of the summit curve is square parabola and ideal shape is circular.
1) Valley curves.
2) Summit curves.
The shape of the valley curve is a cubic parabola.
The shape of the summit curve is square parabola and ideal shape is circular.
Qadeer Ahmed said:
4 years ago
True spiral, cubic spiral, cubic parabola, and lemniscate are the types of transition curves, not vertical curves.
Therefore, option E is correct.
Therefore, option E is correct.
(6)
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.
Because cubic parabola is transition curve, not vertical curve. And it is recommended by IRC. Ideal transition curve is true spiral.
Vinod said:
5 years ago
I think:
The ideal vertical curve is parabolic.
The Summit curve is a simple parabola.
The Valley curve is a cubic parabola.
The ideal vertical curve is parabolic.
The Summit curve is a simple parabola.
The Valley curve is a cubic parabola.
(2)
Nerd said:
5 years ago
Ideal vertical curve is CIRCULAR. But we take square parabola for summit and cubic parabola for valley.
(4)
Chaudhary Abhishek said:
8 years ago
Ideal shape of vertical curve is circular.
But in calculation preferred square parabola.
But in calculation preferred square parabola.
Virender said:
9 years ago
What is the ideal shape of the vertical curve?
Femina said:
6 years ago
Square parabola will the correct answer.
Mahesh sinh said:
5 years ago
Cubic parabola is ideal vertical curve.
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