Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Open Spaces and Site Elements (hierarchy name )
5. open spaces
6. [open spaces by function]
7. transportation spaces
8. roads
9. [roads by form]

Narrower term/s

• beltways
• divided highways
• limited access highways[+]
  • expressways
  • turnpikes
  • parkways
  • freeways
  • throughways

Anotations

Scope note:

Refers to major, high-speed, high-capacity roads between urban areas. The original meaning of "highways" referred to Roman roads that were raised above the ground level; for this meaning, use "elevated roads."