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2 cards from this section. Quick, good the night before a test.
What is the formula for calculating tangent length?
Refer to the key definitions discussed.
Define chainage in the context of road design.
Think about how distances are measured from a starting point.
What is the deflection angle in a circular curve?
Consider how curves change direction.
True or False: Tangent length does not depend on the radius of the curve.
Think about how a small radius affects the tangent length.
A roadway has an apex with a deflection angle of 90° and radius 250 m. Calculate the tangent length and chainage.
Apply tangent length formula first.
A design requires a curve length of 300 m with a given radius of 1000 m. Determine the deflection angle.
Rearrange the curve length formula for Δ.
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