What is the term for the point of intersection of two tangents of a vertical curve?

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Multiple Choice

What is the term for the point of intersection of two tangents of a vertical curve?

Explanation:
In a vertical alignment, you have two straight-grade lines that approach and depart the curved section. If you extend those two tangents, they meet at a single point. That meeting point is called the Point of Vertical Intersection. It serves as the reference for defining the vertical curve geometry and is used in calculations of grades and curve length. The other terms describe different things: the Point of Vertical Curvature refers to the actual curved portion of the alignment, and the Point of Vertical Tangency refers to where the curve transitions to or from a straight grade. Movable Bridge is not related to this concept.

In a vertical alignment, you have two straight-grade lines that approach and depart the curved section. If you extend those two tangents, they meet at a single point. That meeting point is called the Point of Vertical Intersection. It serves as the reference for defining the vertical curve geometry and is used in calculations of grades and curve length.

The other terms describe different things: the Point of Vertical Curvature refers to the actual curved portion of the alignment, and the Point of Vertical Tangency refers to where the curve transitions to or from a straight grade. Movable Bridge is not related to this concept.

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