Road Link

Detailed attribute comparison for OSMM Highways Network's Road Link Feature Type with the equivalent OS NGD feature type.

OSMM Attribute	OSMM Code List (if Applicable)	OS NGD Attribute	OS NGD Code List (if Applicable)	Notes
id	N/A	toid	N/A	Identical attribute enables the migration from OS MasterMap Highways' identifiers.
roadClassification	RoadClassificationValue	roadclassification	roadclassificationvalue	Attribute serves the same purpose.
routeHierarchy	RoadFunctionValue	routehierarchy	roadfunctionvalue	Attribute serves the same purpose. There are some minor differences between the code list values.
formOfWay	FormOfWayValue	description	formofwaytypevalue	Attribute serves the same purpose. There are some differences between the code list values.
trunkRoad	N/A	trunkroad	N/A	Attribute serves the same purpose.
primaryRoute	N/A	primaryroute	N/A	Attribute serves the same purpose.
roadClassificationNumber	N/A	roadclassificationnumber	N/A	Attribute serves the same purpose.
roadName	N/A	name1_text	N/A	Attribute is expanded in the OS NGD to describe the feature name in two languages if applicable. Attribute serves the same purpose with new additional context provided in name1_language, name2_text and name2_language.
alternateName	N/A	alternatename1_text	N/A	Attribute is expanded in the OS NGD to describe the feature name in two languages if applicable. Attribute serves the same purpose with new additional context provided in alternatename1_language, alternatename2_text and alternatename2_language.
operationalState	OperationalStateValue	operationalstate	operationalstatevalue	Attribute serves the same purpose.
provenance	ProvenanceSourceValue	heightingmethod, capturespecification	heightingmethodvalue, capturespecificationvalue	Attribute serves the same purpose, but information has been split over two attributes in the OS NGD.
directionality	LinkDirectionValue	directionality	linkdirectionvalue	Attribute serves the same purpose.
length	N/A	geometry_length_m	N/A	Attribute serves the same purpose.
matchStatus	MatchStatusValue	matchstatus	matchstatusvalue	Attribute serves the same purpose.
alternateIdentifier	N/A	authorityid (Highway Dedication feature type)	N/A	Information is now provided in the Highway Dedication table which can be linked to Path Link using the Highway Dedication Network Reference Table.
startGradeSeparation	N/A	startgradeseparation	N/A	Attribute serves the same purpose.
endGradeSeparation	N/A	endgradeseparation	N/A	Attribute serves the same purpose.
roadStructure	RoadStructureValue	roadstructure	roadstructurevalue	Attribute serves the same purpose.
cycleFacility > cycleFacility	CycleFacilityValue	cyclefacility	cyclefacilityvalue	Attribute serves the same purpose. There are some differences between the code list values.
cycleFacility > wholeLink	N/A	cyclefacility_wholelink	N/A	Attribute serves the same purpose.
roadWidth > averageWidth	N/A	roadwidth_average	N/A	Attribute serves the same purpose.
roadWidth > minimumWidth	N/A	roadwidth_minimum	N/A	Attribute serves the same purpose.
roadWidth > confidenceLevel	RoadWidthConfidenceLevelValue	roadwidth_confidencelevel	roadwidthconfidencelevelvalue	Attribute serves the same purpose. There are some minor differences between the code list values.
elevationGain >InDirection	N/A	elevationgain_indirection	N/A	Attribute serves the same purpose.
elevationgain > InOppositeDirection	N/A	elvevationgain_againstdirection	N/A	Attribute serves the same purpose.
formsPartOf	N/A	Road Link Reference table in either the Road or Street Feature Types	N/A	Information is now provided in a cross-reference table contained within the Road and Street Feature Types.
startNode	N/A	startnode	N/A	Attribute serves the same purpose.
endNode	N/A	endnode	N/A	Attribute serves the same purpose.
relatedRoadArea	N/A	Road Track Or Path Reference table	N/A	Information is now provided in a cross-reference table.

The following attribution is not included in the OS NGD feature types:

1. fictitious: This was an unused INSPIRE attribute within OS MasterMap Highways Network.

2. validfrom: This was an unused attribute within OS MasterMap Highways Network.

All the OSMM Highways Network products' attributes above use the names from the GML format; please see the Attribute naming differences between GML and GeoPackage formats page for the GeoPackage equivalents.