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 material]

Anotations

Scope note:

Roads, paths, walkways, or trackways formed by laying tree trunks or split logs close together transversely, with the rounded surface upwards; a common usage of such roads is to cross a swamp or muddy area with vehicles. For walkways or cart paths that are slightly raised, made of cut timbers, used to cross a swamp or bog, and often in an archaeological context, use "timber trackways."