2.44 - Establish the formulae to calculate various elements to set out the compound curve.
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Practice Questions
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Define a compound curve.
💡 Hint: Think about what you learned regarding curves in road design.
What is the formula for calculating the average radius of a compound curve?
💡 Hint: Consider how you average two numbers.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a compound curve?
💡 Hint: Think about how roads transition.
True or False: The length of a compound curve is proportional to the deflection angle.
💡 Hint: Higher deflection means a longer curve.
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Challenge Problems
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Calculate the external distance for a compound curve made with R1 = 300 m and R2 = 450 m if the deflection angle is 60°.
💡 Hint: Remember to divide the deflection angle when calculating.
A road section's compound curve has radii of 250 m and 350 m, respectively. Calculate the total length of the curve for a deflection angle of 75°.
💡 Hint: Use the length formula and stay mindful about degrees to radians.
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