A code list is a controlled set of values for an attribute. This section identifies the code lists used within OS Open Rivers and describes their values.
10
High
Buildings that are represented well by the Building Height Attribute values and for which we have high confidence in the geometric accuracy of the values.
20
Moderate
Buildings that are represented well by the Building Height Attribute values but where we do not have a high confidence in the geometric accuracy of the height values.
30
Low
Buildings that have a complex geometry which cannot be accurately represented using the Building Height Attribute values.
90
Incomplete
Buildings for which we have not been able to calculate some or all of the Building Height Attribute values.
99
Not Assessed
Buildings for which the confidence level of the Building Height Attribute values has not been assessed.