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19.1. A 1% grade meets a +2.0% grade
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Practice test
11 questions on this section. Wrong answers show you what to read again.
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Revision test
Mixed questions from across the chapter. Your answers get marked.
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Flashcard drill
3 cards from this lesson. Good the night before a test.
Try these first
- 1.
What is a grade in road design?
Hint
Think about how steep a hill is.
- 2.
What does chainage measure?
Hint
Consider how we mark distances on roads.
- 3.
What is the purpose of calculating tangent lengths in road design?
- To determine the height of the curve
- To ensure smooth transitions between grades
- To measure the distance of the road
Hint
Think about transitions when driving.
- 4.
True or False: The chainage is measured in kilometers.
- True
- False
Hint
Consider common road measurement units.
- 5.
If a highway section has a gradient change from -2% to +3%, explain the design considerations for setting out smooth curves and calculate the required curve lengths with a radius of 250 m.
Hint
Remember to account for safety, vehicle speed, and visibility!
- 6.
Design a road that connects a -1% grade to a +4% grade. Calculate the total length of the vertical curve needed and provide a tabulated summary of how chainage changes with distance on the curve.
Hint
Break it down: consider each segment as you go!
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
1 more question available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting