Question

The point where the road alignment changes from a tangent to a curve is known as ___________.
 

• A. Point of deflection
• B. Point of intersection
• C. Point of curve
• D. Point of tangency

Hint:

Remember the road alignment transition points: PI (intersection), PC (start of curve), PT (end of curve).

Answer 1

The Correct Option is C

In highway geometry, the transition from a straight path (tangent) to a circular curve is marked by specific points:

- Point of Intersection (PI): Where two tangents meet.
- Point of Curve (PC): Where the curve begins (tangent ends and curve starts).
- Point of Tangency (PT): Where the curve ends and tangent resumes.
Therefore, the point where the road alignment changes from a tangent to a curve is called the Point of Curve (PC).

Hence, the correct answer is (C).