2.30 - Explain the following terms for a simple circular curve: (i) Back and forward tangents, (ii) Point of intersection, curve and tangency, (iii) Deflection angle to any point, and (iv) Degree of curve
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Practice Questions
Test your understanding with targeted questions
What is a back tangent?
💡 Hint: Think about the direction before entering a curve.
Define point of intersection.
💡 Hint: Consider where the straight roads connect to form a curve.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the back tangent refer to?
💡 Hint: It is the line you are coming from.
True or False: The degree of curve helps in determining the maximum safe speed of vehicles on a curve.
💡 Hint: Think about how fast you can drive through a sharp turn.
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Challenge Problems
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If a circular curve has a degree of curvature of 5 degrees, what is the radius of the curve?
💡 Hint: Use the relationship that connects radius and degree of curvature.
With a deflection angle of 45 degrees, calculate the distance from the PI to the tangent point if the radius is 100 m.
💡 Hint: Think about the geometry of circular curves.
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