These pages describe the single feature type (OS Open USRN) available for the OS Open USRN product. The attributes associated with the feature type are listed on the following page. The following information is given for each attribute.
The name of the attribute and what it is describing.
The nature of the attribute (for example, a numeric value).
The maximum length of the values in the attribute.
Describes how many times this element is expected to be populated in the data. An attribute may be optional or mandatory within the OS Open USRN product and this is denoted by:
'1’ – Mandatory: There must be a value.
‘0..1’ – Optional: If populated, a maximum of one attribute will be returned.
The following sub-sections provide details about the attributes included with the single feature type (OS Open USRN) in the product:
A non-persistent integer which is autogenerated and is required within the OGC GeoPackage format.
Type: Integer
Multiplicity: [1]
Unique Street Reference Number (USRN), a unique and persistent identifier assigned by the Roads or Highway Authority.
Type: Integer
Size: 8
Multiplicity: [1]
The type of Street assigned by the Roads or Highway Authority.
See the Street Type values table for allowable values.
Type: Text
Size: 35
Multiplicity: [1]
The aggregated geometry of either matched OS Road Links or the Elementary Street Units.
For more information, see the Geometry page.
Type: Geometry (MultiLineString)
Multiplicity: [1]