Restrictions

Detailed attribute comparison for OSMM Highways Network's Access Restriction, Turn Restriction and Restriction for Vehicles Feature Types with the equivalent OS NGD feature type.

The three OSMM Highways Network Restrictions feature types (Access Restriction, Turn Restriction, Restriction For Vehicles) share many of the same attributes and now reside in a single OS NGD feature type (Restriction); they have been combined into a single table below.

The description attribute in the OS NGD Restriction Feature Type details the type based on the restrictiontypedescriptionvalue Code List.

OSMM Attribute	OSMM Code List (if Applicable)	OS NGD Attribute	OS NGD Code List (if Applicable)	Notes
exemption > Load, exemption > Use, exemption > Vehicle,	LoadTypeValue, UseTypeValue, VehicleTypeValue	exemption	vehiclequalifiervalue	Attribute serves the same purpose. There are some minor differences between the code list values. The OS NGD code list covers all types of inclusion (Vehicle, Use, Load).
inclusion > Load, inclusion > Use, inclusion > Vehicle	LoadTypeValue, UseTypeValue, VehicleTypeValue	inclusion	vehiclequalifiervalue	Attribute serves the same purpose. There are some minor differences between the code list values. The OS NGD code list covers all types of inclusion (Vehicle, Use, Load).
measure > measure	N/A	measure1_value	N/A	Attribute serves the same purpose.
measure > uom	N/A	measure1_unitofmeasure	N/A	Attribute serves the same purpose.
measure2 > measure	N/A	measure2_value	N/A	Attribute serves the same purpose.
measure2 > uom2	N/A	measure2_unitofmeasure	N/A	Attribute serves the same purpose.
sourceOfMeasure	N/A	measure1_sourceofmeasure, measure2_sourceofmeasure	sourceofmeasurevalue	Attribute serves the same purpose.
networkRef > ApplicableDirection	LinkDirectionValue	Restriction Network Reference Table > roadlinkdirection	linkdirectionvalue	Information is now provided in a cross-reference table.
networkRef > element	N/A	Restriction Network Reference Table > networkreferenceid	N/A	Information is now provided in a cross-reference table.
networkRef > AtPosition	N/A	atpositionxcoordinate, atpositionycoordinate	N/A	Attribute serves the same purpose. AtPosition was expressed as the distance from the start of the link. In OS NGD, this is expressed as X and Y coordinates if the Access Restriction is a point.
restriction	AccessRestrictionValue	restriction	restrictionvalue	Attribute serves the same purpose. There are some minor differences between the code list values. The OS NGD code list covers all types of restrictions, not just access restrictions.
restrictionType	RestrictionTypeValue	restriction	restrictionvalue	Attribute serves the same purpose. There are some minor differences between the code list values. The OS NGD code list covers all types of restrictions, not just restrictions for vehicles.
structure	StructureTypeValue	structure	structuretypevalue	Attribute serves the same purpose.
N/A	N/A	timeinterval	N/A	Summary of other timeinterval attributes.
timeInterval > dateRange > EndDate	N/A	Date Time Qualifier Reference Table > enddate	N/A	Attribute serves the same purpose.
timeInterval > dateRange > EndMonthDay	N/A	Date Time Qualifier Reference Table > endmonthday	N/A	Attribute serves the same purpose.
timeInterval > dateRange > StartDate	N/A	Date Time Qualifier Reference Table > startdate	N/A	Attribute serves the same purpose.
timeInterval > dateRange > StartMonthDay	N/A	Date Time Qualifier Reference Table > startmonthday	N/A	Attribute serves the same purpose.
timeInterval > dayPeriod > NamedDay	N/A	Date Time Qualifier Reference Table > namedday	N/A	Attribute serves the same purpose.
timeInterval > dayPeriod > NamedPeriod	N/A	Date Time Qualifier Reference Table > namedperiod	N/A	Attribute serves the same purpose.
timeInterval > dayPeriod > TimePeriod > NamedTime	N/A	Date Time Qualifier Reference Table > namedtime	N/A	Attribute serves the same purpose.
timeInterval > dayPeriod > TimePeriod >TimeRange >EndTime	N/A	Date Time Qualifier Reference Table > endtime	N/A	Attribute serves the same purpose.
timeInterval > dayPeriod > TimePeriod >TimeRange >StartTime	N/A	Date Time Qualifier Reference Table > starttime	N/A	Attribute serves the same purpose.
timeInterval > namedDate	N/A	Date Time Qualifier Reference Table > nameddate	N/A	Attribute serves the same purpose.
trafficSign	N/A	trafficsign1, trafficsign2	N/A	Attribute serves the same purpose. If the attribute contains multiple values, the second can be found in trafficsign2.

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.