NICET - Highway Construction Inspection Practice Exam

What does the point of intersection refer to?

1. The point where the road meets the sidewalk

2. The point where curves begin

3. The point where the back and forward tangents intersect

4. The midpoint of a curve

The correct answer is: The point where the back and forward tangents intersect

The point of intersection specifically refers to the location where the back and forward tangents meet. In roadway design and construction, tangents are straight sections of the road that connect to curves. The intersection of these tangents is crucial because it defines the beginning and end of curves along the roadway. Understanding this point is vital for accurate road geometry, design alignment, and ensuring smooth transitions for vehicles moving from straight sections to curved paths. The other choices provide definitions for different aspects of roadway construction. The meeting point of the road and sidewalk pertains to pedestrian access and safety, while the initiation of curves and the midpoint of a curve describe different elements of road curvature without emphasizing the significance of the tangent intersection. Thus, identifying the point where the back and forward tangents intersect is fundamental in highway design and drawing attention to this specific point helps clarify overall roadway layout.