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Code lists

The code lists for the OS ESG.

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 OS Emergency Services Gazetteer (OS ESG). Some of the code lists only apply to attributes of the feature type and both structured data types, whereas others will only apply to attributes of either the feature type or one of the two structured data types.

The pages in this section display the code lists in alphabetical order, with one code list provided per page.

Please note, not all of the code lists listed will be populated within the OS ESG product.

AddressbasePostalCode

The code list describes the record as postal or not, as defined by AddressBase logic. This code list is used in association with the ADDRESSBASE_POSTAL (CSV) / addressbase_postal (GKPG) attribute on the BLPU table.

Value

Description

BLPUStateCode

This code list describes the physical nature of the address record. This code list is used in association with the BLPU_STATE (CSV) / blpu_state (GKPG) attribute.

Value

Description

ChangeTypeCode

This code list identifies the type of change that has been made to a feature. Please see the 'Product supply' page in the OS ESG Overview for more information.  This code list is used in association with the CHANGE_TYPE (CSV) / change_type (GKPG) attribute.

Value

Description

ClassificationCode

This code list describes the classification code for each feature. The classification codes will be expanded as necessary for future releases.

The new bridge interaction classification codes that are due to be added to this code list in December 2024 are included (and clearly labelled) in the table below.

Value

Description

CountryCode

The code list describes within which country the feature falls (England, Wales or Scotland). This code list is used in association with the COUNTRY (CSV) / country (GKPG) attribute on the table.

Value

Description

FileTypeCode

This code list allows the identification of either a Change-Only Update (COU) Supply or a Full Supply. This code list is used in association with the FILE_TYPE (CSV) attribute found in the record.

Value

Description

LanguageCode

This code list identifies the language of the feature displayed. This code list is used in association with the LANGUAGE (CSV) / language (GKPG) attribute found in tables, and also the table for CSV supply.

Value

Description

LogicalStatusCode

This code list provides a value to show the lifecycle stage of the features record. This code list is used in association with the LOGICAL_STATUS (CSV) / logical_status (GKPG) attribute found in the and tables.

Value

Description

OfficialFlagCode

This code list is an indicator of whether a features record corresponds to an entry in the official Street Name and Numbering register. This code list is used in association with the OFFICIAL_FLAG (CSV) / official_flag (GKPG) attribute found on the table.

Value

Description

RPCCode

The code list identifies the accuracy value of the coordinates allocated to the feature. This code list is used in association with the RPC (CSV) / rpc (GKPG) attribute found on the table.

Value

Description

Implementation notes

USRNMatchIndicatorCode

This code list identifies how the USRN has been allocated to a features record. This code list is used in association with the USRN_MATCH_INDICATOR (CSV) / usrn_match_indicator (GKPG) attribute found on the .

Value

Description