Feature types

This section describes the features which make up OS MasterMap Highways Network - Roads. The attributes associated with these feature types are listed below along with a brief description of their data properties.

Name and Definition

The name of the attribute and what it is describing.

Data type

The nature of the attribute, for example a numeric value or a code list value.

Size

The length of the attribute provided (optional).

Multiplicity

Describes how many times this element is expected to be populated in the data. An attribute may be optional or mandatory within the product. These are denoted by:

• ‘1’ – there must be a value.

• ‘0..1’ – population is optional but a maximum of one attribute will be returned These values may be used in combination.

Many of the attributes which have been inherited from the INSPIRE Transport Network model have a stereotype of ‘voidable’, for example, “beginLifespanVersion”. Where these attributes have not been populated then there is a requirement to give a reason for this. This will be specified in the GML through an attribute called “nilReason”.