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3 cards from this section. Quick, good the night before a test.
What is a back tangent?
Think about the direction before entering a curve.
Define point of intersection.
Consider where the straight roads connect to form a curve.
What does the back tangent refer to?
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.
Think about how fast you can drive through a sharp turn.
If a circular curve has a degree of curvature of 5 degrees, what is the radius of the curve?
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.
Think about the geometry of circular curves.
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