What indicates the point at which two tangents intersect in roadway design?

The point at which two tangents intersect in roadway design is referred to as the point of intersection. This is a crucial concept in roadway geometry and design because the point of intersection marks the location where two road segments (or tangents) meet, which is pivotal for determining the alignment and trajectory of the road.

In roadway design, understanding and accurately identifying the point of intersection is vital for ensuring smooth transitions between roadways and for safety. It affects vehicle speed, sight distance, and the overall flow of traffic at the junction. Engineers and planners typically use this point to design intersections, consider turning paths, and plan for necessary signage and safety measures.

The other terms provided do not specifically represent the intersection of two tangents. For instance, the point of curvature refers to the point at which a straight section of road begins to curve, while primary intersection may refer to major junctions but lacks precision in defining where two tangents meet. Connecting point implies a concept of linking but does not accurately capture the technical definition relevant in roadway design.