addr:AddressZValue_type

Ordinal or ratio ("true") measurement of the height of
each level of a building. Ordinal measurements give
relative vertical positions: the lowest level of a
building is 1, the one above that 2, etc. Ratio


measurements are elevations given in terms of a a
spatial referencing system. Either method should be
described in file-level metadata per FGDC's Content
Standard for Geospatial Metadata.