Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication (hierarchy name)
4. Visual Works (hierarchy name)
5. visual works (works)
6. [visual works by form]
7. [visual works by form of image]
8. [images by method of representation]
9. [images by method of projection]
10. orthographic projections (images)
11. plans (orthographic projections)
12. building plans

Narrower term/s

• electrical plans
• HVAC plans[+]
  • heating plans
• plumbing plans

Anotations

Scope note:

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.