Which term is used for the location of the first point of tangency on a horizontal curve?

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Multiple Choice

Which term is used for the location of the first point of tangency on a horizontal curve?

Explanation:
On a horizontal curve, the line from the straight approach must bend into the curved path. The point where the curve begins to depart from the straight alignment, so the tangent to the curve matches the approach tangent, is called the Point of Curvature. It marks the start of the curved portion. The end of the curve, where it returns to a straight path, is the Point of Tangency. The Point of Intersection is simply the hypothetical meeting point of the extended tangents, not a point on the actual curve. Parapet and railing are protective features and not used to define the curve's geometry.

On a horizontal curve, the line from the straight approach must bend into the curved path. The point where the curve begins to depart from the straight alignment, so the tangent to the curve matches the approach tangent, is called the Point of Curvature. It marks the start of the curved portion. The end of the curve, where it returns to a straight path, is the Point of Tangency. The Point of Intersection is simply the hypothetical meeting point of the extended tangents, not a point on the actual curve. Parapet and railing are protective features and not used to define the curve's geometry.

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