What is the primary purpose of a section view in construction documents?

The primary purpose of a section view in construction documents is to depict internal details through a vertical cut. A section view provides a detailed look at the layers and components of a structure, illustrating how different elements interact with each other. This type of view allows architects, builders, and engineers to convey crucial information about the heights, materials, and construction methods used in walls, floors, ceilings, and other interior elements. By visualizing these internal details, construction teams can ensure accuracy in building according to plans, facilitating a better understanding of the design intent and assisting in identifying any potential issues before construction begins.

The other options, while relevant in the context of construction documents, do not represent the primary function of a section view. Color specifications, external landscaping, and top-down views all serve important roles in the documentation process but do not provide the same level of insight into the internal arrangements and structural components that a section view offers.