17.1 - Length of vertical curve
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Practice Questions
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Define a vertical curve.
💡 Hint: Think about how grades change in a roadway.
What does the rate of change of grade indicate?
💡 Hint: Consider the speed of transition in slope.
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Interactive Quizzes
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What is the purpose of a vertical curve in roadway design?
💡 Hint: Think about the safety of drivers.
A vertical curve connects road grades of +3% and -2% with a rate of change of 0.5%. What is the length of the curve?
💡 Hint: Focus on finding the difference first.
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Challenge Problems
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Determine the length of a vertical curve required to transition from a +1.5% grade to a +4% grade over a 50 m distance, with a rate of change of 0.2%.
💡 Hint: Start by calculating the difference in grades.
Explain how vertical curves impact driver behavior and safety, providing statistical or anecdotal evidence.
💡 Hint: Consider safety reports and traffic data in your response.
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