OS MasterMap Highways Network Code Lists

A code list is a controlled set of allowable labels or codes represented as an alphanumeric attribute. The pages in this section show the code lists used within the three OS MasterMap Highways Network products. The table below lists all the code lists used in OS MasterMap Highways Network products and identifies which of the three products each code list is associated with.

Code List
RAMI
Roads
Paths

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