2.58 - The bearings of three successive intersecting straights AB, BC and CD along the centre line of a proposed highway...
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Practice Questions
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Define what a bearing is.
💡 Hint: Think about how you would describe a direction on a compass.
What does chainage refer to?
💡 Hint: Relate it to measuring a route on a map.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the bearing for line AB?
💡 Hint: Refer back to how bearings are defined.
True or False: The chainage increases from point A to point D in the highway.
💡 Hint: Think about the flow of traffic.
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Challenge Problems
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Given a road section with bearings AB = 90°, BC = 135°, and CD = 180°, calculate the required changes in radius for a smoother transition.
💡 Hint: Ensure all angles are measured from the north direction.
Calculate the distance required between tangent points if AB has a radius of 250 m and a deflection angle of 45°. Discuss implications of changes in curve length.
💡 Hint: Think of how road curvature affects vehicle dynamics.
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