4.1 - Example 2.1
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Practice Questions
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What is super-elevation?
💡 Hint: Think of how banks are built at curves.
Define a transition curve.
💡 Hint: Consider what happens when a straight road suddenly turns.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating super-elevation?
💡 Hint: Look for the formula that includes v, g, and R effectively.
True or False: Transition curves can negatively impact vehicle stability if designed inadequately.
💡 Hint: Think about what happens when vehicles approach a sudden curve.
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Challenge Problems
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Design a roadway with a transition curve for a vehicle speed of 60 m/s and a curve radius of 150 m. Determine the length needed for a smooth transition.
💡 Hint: Refer to design guidelines for safe transitions and adjust measurement accordingly.
A vertical curve is designed to connect two road segments with gradients of +2% and -2%. Determine the ideal length of the vertical curve for smooth transition.
💡 Hint: Review how changing gradients affect visibility and comfort.
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