Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Single Built Works (hierarchy name)
5. single built works (built environment)
6. [single built works by specific type]
7. [single built works by function]
8. transportation structures
9. transportation buildings
10. road transportation structures
11. toll-collection structures

Anotations

Scope note:

Structures at which a local toll or duty was collected, originally by towns and cities, later by monarchs, on certain goods that passed into their territories for local consumption by the inhabitants; found especially from the 17th to the 19th century in France and Italy. Term derives from the name of the tax itself.