15.2.3 - Attainment of super-elevation
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Practice Questions
Test your understanding with targeted questions
What is super-elevation and why is it important?
💡 Hint: Think about how this helps vehicles navigate curves.
Name the two methods to attain super-elevation.
💡 Hint: One involves shifting and the other involves rotation.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary goal of super-elevation?
💡 Hint: Think about the forces at play when taking a turn.
True or False: The diagonal crown method is used to narrow the inner cross-section.
💡 Hint: Recall what shifting the crown achieves.
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Challenge Problems
Push your limits with advanced challenges
A highway curve measures a radius of 200 m. Calculate the super-elevation needed for a vehicle traveling at 90 km/h considering lateral friction.
💡 Hint: Use the formula e = (0.75v)^2 / (gR) to simplify.
You have a curved road where a truck with a high center of gravity must navigate. Discuss whether the rotation about the center line or inner edge would provide better stability. Justify your response with principles of super-elevation.
💡 Hint: Evaluate how each method affects vehicle dynamics.
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