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4 cards from this section. Quick, good the night before a test.
Define a compound curve.
Think about how roads or paths change direction.
What is a deflection angle?
Consider the angle made by two lines at a curve's endpoint.
What is a compound curve?
Think about road design and smooth transitions.
Which element is crucial in determining the geometry of a compound curve?
Recall the role of angles in geometry.
Design a compound curve between two straight sections connected by tangents of lengths 40m and 30m. The radii are 50m and 60m with deflection angles 25° and 35°. Calculate the lengths of each arc and set out the angle measurement.
Convert angles to radians before multiplication with radii.
A road engineer needs to determine the tangent point location between two straight roads intersected by a compound curve. Given the straight lengths and angles, devise a solution for locating point B.
Draw a diagram to visualize locations based on angles.
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