Practice A 1% grade meets a +2.0% grade - 19.1 | 2. Solution | Surveying and Geomatics
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Practice Questions

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Question 1

Easy

What is a grade in road design?

💡 Hint: Think about how steep a hill is.

Question 2

Easy

What does chainage measure?

💡 Hint: Consider how we mark distances on roads.

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Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

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.

Question 2

True or False: The chainage is measured in kilometers.

  • True
  • False

💡 Hint: Consider common road measurement units.

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Challenge Problems

Push your limits with challenges.

Question 1

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!

Question 2

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!

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