Practice Types Of Vertical Curves (2.7.1) - Transition Curves

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9 questions

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6 sample questions

Question 1.
Define summit curve.
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What type of curve occurs at the top of a hill?
Question 2.
What is the recommended rate of change for gradients at a summit?
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How gradually should we change slopes for comfort?
3Question 3.
What is the main characteristic of a summit curve?
- Convex upwards
- Convex downwards
- Flat
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Think about the shape of a hill.
4Question 4.
True or False: The rate of change for a valley curve should be greater than that of a summit curve.
- True
- False
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Remember the specifications for design safety.
Question 5.
Based on a summit curve with a gradient of 2% upward followed by a 1.5% downward, calculate the necessary length of the vertical curve to ensure a smooth transition.
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What is the total change in gradient you need to consider?
Question 6.
Design a valley curve connecting a steep downgrade of 3% to a mild upgrade of 1%, and assess the required sight distance to ensure safety.
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Remember that sight distance should account for nighttime conditions too!

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