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 function]

Anotations

Scope note:

More recently, refers to roads over which mail is carried. Historically, roads with stations providing for horses for postriders, mailcoaches, or travelers. More recently, refers to roads over which mail is carried. Historically, roads with stations providing for horses for postriders, mailcoaches, or travelers.