In ROW design, what is a sight triangle?

In ROW design, what is a sight triangle?

• A. The triangular area near road shoulders
• B. The area where vegetation is restricted to improve aesthetics
• C. The paved area around the crosswalk to slow traffic
• D. The cleared area at intersections that provides unobstructed visibility for drivers

Answer: (D)

In ROW design, the main concept is ensuring a driver’s line of sight at intersections by creating a sight triangle. This is the cleared triangular area around an intersection bounded by sight lines from a driver’s eye to the far edges of the intersecting road, forming a triangle. Its purpose is to provide unobstructed visibility for drivers so they can see approaching traffic and pedestrians in time to react. That defined area must be kept free of obstructions like vegetation, fences, or signs within the required distances. So, the sight triangle is the cleared area at intersections that provides unobstructed visibility for drivers. The other descriptions don’t describe the purpose of maintaining clear sight lines around intersections.

In ROW design, the main concept is ensuring a driver’s line of sight at intersections by creating a sight triangle. This is the cleared triangular area around an intersection bounded by sight lines from a driver’s eye to the far edges of the intersecting road, forming a triangle. Its purpose is to provide unobstructed visibility for drivers so they can see approaching traffic and pedestrians in time to react. That defined area must be kept free of obstructions like vegetation, fences, or signs within the required distances. So, the sight triangle is the cleared area at intersections that provides unobstructed visibility for drivers. The other descriptions don’t describe the purpose of maintaining clear sight lines around intersections.