Drawings or works in another medium, often made by an engineer, that indicate the location of utilities, including water supply lines, fire hydrants, sewage disposal lines, and other utilities typically located in the road right-of-way. As part of the construction process, these plans are generally required for submission to local authorities such as public works departments, public health boards, fire departments, pollution control regulators, etc.

Orthographic drawings that show a structure as partly an exterior elevation and partly an interior elevation. If only a small portion of exterior is taken away, use "broken-out sections." For smaller, symmetrical objects shown as half exterior and half interior, use "half sections."

Plans that are viewed from above, but laid out as if they were projected downward onto the back of an upper surface, such as a ceiling. In such a plan all members seen on the left from below appear on the right in the plan. The term also refers to plans for ceilings depicted as if reflected in a mirror on the floor, within the context of the floor plan, with the goal of illustrating how the ceiling design or configuration relates to the floor plan.

refers to drawings, sketches, prints, computer graphics, or works in other media depicting a building or any object viewed from above, geometrically represented as projected on a horizontal plane. The term is particularly used to refer to drawings or other images showing the relative positions of all the parts of a building, or of the parts of any one floor, roof, or other part of a building in horizontal section; it is thus distinguished from vertical sections or elevations. The term can also be used collectively to refer to sets of drawings or other images for a project, including plans per se as well as other drawings, such as sections. For general reference to depictions or photographs showing structures or sites seen from directly above, use "plan views." For representations of portions of the Earth's surface use "maps" or "plans (maps)"

Orthographic drawings or works in another media depicting a building, object, or site as if cut through and exposed at one specific plane.

elevations of only part of a structure. For drawings showing a structure as partly an exterior elevation and partly an interior elevation, use "sectional elevations"