2.51 - Two straights intersect at a chainage of 2500 m with an angle of deflection as 40°. The straights are to be connected by a simple circular curve...
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Practice Questions
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Define the term 'radius of curve'.
💡 Hint: Think about the center point of a circle.
What is a tangent length?
💡 Hint: It relates to where the straight path meets the curve.
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Interactive Quizzes
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What is a simple circular curve?
💡 Hint: Consider the characteristics of a circle.
True or False: The longer the tangent length, the sharper the curve.
💡 Hint: Think about how curves connect straight sections.
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Challenge Problems
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A circular curve with a deflection angle of 60° joins two straights. Given the radius is 400 m, calculate the lengths of the tangents and the long chord.
💡 Hint: Use trigonometric identities to find the lengths.
In a design for a roadway, a simple circular curve needs to accommodate traffic at a speed of 80 km/h. Calculate the necessary radius, considering a maximum allowable lateral acceleration.
💡 Hint: Remember the safe turning radius at higher speeds.
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