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# Zones table

The default zones table has a MultiPolygon geometry type and a limited number of fields, as most of the data is expected to be in the demand_database.sqlite.

The API for manipulation of the zones table and each one of its records is consistent with what exists to manipulate the other fields in the database.

As it happens with links and nodes, zones also have geometries associated with them, and in this case they are of the type .

You can check this example to learn how to add zones to your project.

See also

- `aequilibrae.project.Zone()`

    Class documentation

- zones table structure

    Data model