Commission Regulation (EU) No 1089/2010Dangos y teitl llawn

5. GENERIC NETWORK MODEL U.K.

5.1. Spatial Object Types U.K.

5.1.1. Cross Reference (CrossReference) U.K.

Represents a reference between two elements in the same network.

Association roles of the spatial object type CrossReference

Association role	Definition	Type	Voidability
element	The cross referenced elements	NetworkElement

5.1.2. Generalised Link (GeneralisedLink) U.K.

Abstract base type representing a linear network element that may be used as a target in linear referencing.

This type is a sub-type of NetworkElement.

This type is abstract.

5.1.3. Grade Separated Crossing (GradeSeparatedCrossing) U.K.

Indicator which of two or more intersecting elements is/are below and which is/are above, to be used if elevation coordinates are not present or cannot be trusted.

This type is a sub-type of NetworkElement.

Association roles of the spatial object type GradeSeparatedCrossing

Association role	Definition	Type	Voidability
element	Sequence of crossing links. The order reflects their elevation; the first link is the lower link.	Link

5.1.4. Link (Link) U.K.

Curvilinear network element that connects two positions and represents a homogeneous path in the network. The connected positions may be represented as nodes.

This type is a sub-type of GeneralisedLink.

This type is abstract.

Attributes of the spatial object type Link

Attribute	Definition	Type	Voidability
centrelineGeometry	The geometry that represents the centreline of the link.	GM_Curve
fictitious	Indicator that the centreline geometry of the link is a straight line with no intermediate control points – unless the straight line represents the geography in the resolution of the data set appropriately.	Boolean

Association roles of the spatial object type Link

Association role	Definition	Type	Voidability
endNode	The optional end node for this link. The end node may be the same instance as the start node.	Node
startNode	The optional start node for this link.	Node

5.1.5. Link Sequence (LinkSequence) U.K.

A network element which represents a continuous path in the network without any branches. The element has a defined beginning and end and every position on the link sequence is identifiable with one single parameter such as length.

This type is a sub-type of GeneralisedLink.

This type is abstract.

Attributes of the spatial object type LinkSequence

Attribute	Definition	Type	Voidability
link	The ordered collection of directed links that constitute the link sequence.	DirectedLink

5.1.6. Link Set (LinkSet) U.K.

A collection of link sequences and/or individual links that has a specific function or significance in a network.

This type is a sub-type of NetworkElement.

This type is abstract.

Association roles of the spatial object type LinkSet

Association role	Definition	Type	Voidability
link	The set of links and link sequences that constitute the link set.	GeneralisedLink

5.1.7. Network (Network) U.K.

A network is a collection of network elements.

Attributes of the spatial object type Network

Attribute	Definition	Type	Voidability
geographicalName	Geographical name for this network.	GeographicalName	voidable

Association roles of the spatial object type Network

Association role	Definition	Type	Voidability
elements	The collection of elements that constitutes the network.	NetworkElement

5.1.8. Network Area (NetworkArea) U.K.

A 2-dimensional element in a network.

This type is a sub-type of NetworkElement.

This type is abstract.

Attributes of the spatial object type NetworkArea

Attribute	Definition	Type	Voidability
geometry	Represents the geometric properties of the area	GM_Surface

5.1.9. Network Connection (NetworkConnection) U.K.

Represents a logical connection between two or more network elements in different networks.

This type is a sub-type of NetworkElement.

Attributes of the spatial object type NetworkConnection U.K.

Attribute	Definition	Type	Voidability
type	Categorisation of the network connection.	ConnectionTypeValue	voidable

Association roles of the spatial object type NetworkConnection U.K.

Association role	Definition	Type	Voidability
element	Network elements in different networks	NetworkElement

Constraints of the spatial object type NetworkConnection U.K.

All elements have to be in different networks

5.1.10. Network Element (NetworkElement) U.K.

Abstract base type representing an element in a network. Every element in a network provides some function that is of interest in the network.

This type is abstract.

Attributes of the spatial object type NetworkElement

Attribute	Definition	Type	Voidability
beginLifespanVersion	Date and time at which this version of the spatial object was inserted or changed in the spatial data set.	DateTime	voidable
endLifespanVersion	Date and time at which this version of the spatial object was superseded or retired in the spatial data set.	DateTime	voidable
inspireId	External object identifier of the spatial object.	Identifier

Association roles of the spatial object type NetworkElement

Association role	Definition	Type	Voidability
inNetwork	The networks in which a network element is a member.	Network	voidable

5.1.11. Network Property (NetworkProperty) U.K.

Abstract base type representing phenomena located at or along a network element. This base type provides general properties to associate the network-related phenomena (network properties) with the network elements.

This type is abstract.

Attributes of the spatial object type NetworkProperty

Attribute	Definition	Type	Voidability
beginLifespanVersion	Date and time at which this version of the spatial object was inserted or changed in the spatial data set.	DateTime	voidable
endLifespanVersion	Date and time at which this version of the spatial object was superseded or retired in the spatial data set.	DateTime	voidable
inspireId	External object identifier of the spatial object.	Identifier
networkRef	Spatial reference of the network-related property.	NetworkReference	voidable

5.1.12. Node (Node) U.K.

Represents a significant position in the network that always occurs at the beginning or the end of a link.

This type is a sub-type of NetworkElement.

This type is abstract.

Attributes of the spatial object type Node

Attribute	Definition	Type	Voidability
geometry	The location of the node.	GM_Point

Association roles of the spatial object type Node

Association role	Definition	Type	Voidability
spokeEnd	The links that enter the node.	Link	voidable
spokeStart	The links that leave the node.	Link	voidable

5.2. Data Types U.K.

5.2.1. Directed Link (DirectedLink) U.K.

A link either in its positive or negative direction.

Attributes of the data type DirectedLink

Attribute	Definition	Type Voidability	Voidability
direction	Indicates if the directed link agrees (positive) or disagrees (negative) with the positive direction of the link.	Sign

Association roles of the data type DirectedLink

Association role	Definition	Type Voidability	Voidability
link	The link	Link

5.2.2. Link Reference (LinkReference) U.K.

A network reference to a linear network element.

This type is a sub-type of NetworkReference.

Attributes of the data type LinkReference U.K.

Attribute	Definition	Type	Voidability
applicableDirection	The directions of the generalised link to which the reference applies. In cases where a property does not apply to a direction along a link, but represents a phenomenon along a link, ‘inDirection’ refers to the right side in the direction of the link.	LinkDirectionValue	voidable

Constraints of the data type LinkReference U.K.

Linear reference targets must be linear network elements. That is, if linear referencing is used or direction is relevant, the target of the network reference shall be a link or a link sequence.

5.2.3. Network Reference (NetworkReference) U.K.

A reference to a network element.

Association roles of the data type NetworkReference

Association role	Definition	Type	Voidability
element	The referenced network element.	NetworkElement

5.2.4. Simple Linear Reference (SimpleLinearReference) U.K.

A network reference that is restricted to part of a linear network element. The part is the part of the network element between fromPosition and toPosition.

This type is a sub-type of LinkReference.

Attributes of the data type SimpleLinearReference

Attribute	Definition	Type	Voidability
fromPosition	The start position of the linear element, expressed as the distance from the start of the linear network element along its curve geometry.	Length
offset	An offset from the centreline geometry of the generalised link, where applicable; a positive offset is to the right in the direction of the link, a negative offset is to the left.	Length	voidable
toPosition	The end position of the linear element, expressed as the distance from the start of the linear network element along its curve geometry.	Length

5.2.5. Simple Point Reference (SimplePointReference) U.K.

A network reference that is restricted to a point on a linear network element. The point is the location on the network element at the position atPosition along the network.

This type is a sub-type of LinkReference.

Attributes of the data type SimplePointReference

Attribute	Definition	Type	Voidability
atPosition	Position of the point, expressed as the distance from the start of the linear network element along its curve geometry.	Length
offset	An offset from the centreline geometry of the generalised link, where applicable; a positive offset is to the right in the direction of the link, a negative offset is to the left.	Length	voidable

5.3. Code Lists U.K.

5.3.1. Connection Type (ConnectionTypeValue) U.K.

Types of connections between different networks.

[F1 The allowed values for this code list comprise only the values in the table below.]

Textual Amendments

F1 Substituted by Commission Regulation (EU) No 1253/2013 of 21 October 2013 amending Regulation (EU) No 1089/2010 implementing Directive 2007/2/EC as regards interoperability of spatial data sets and services.

[F2 [F1 Values for the code list] ConnectionTypeValue

Value	Definition
crossBorderConnected	Connection between two network elements in different networks of the same type, but in adjacent areas. The referenced network elements represent the different, but spatially connected real-world phenomena.
crossBorderIdentical	Connection between two network elements in different networks of the same type, but in adjacent areas. The referenced network elements represent the same real-world phenomena.
intermodal	Connection between two network elements in different transport networks that use a different transport mode. The connection represents a possibility for the transported media (people, goods, etc) to change from one transport mode to another.]

Textual Amendments

F2 Inserted by Commission Regulation (EU) No 102/2011 of 4 February 2011 amending Regulation (EU) No 1089/2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services.

5.3.2. Link Direction (LinkDirectionValue) U.K.

List of values for directions relative to a link

[F1 The allowed values for this code list comprise only the values in the table below.]

[F2 [F1 Values for the code list] LinkDirectionValue

Value	Definition
bothDirections	In both directions.
inDirection	In direction of the link.
inOppositeDirection	In the opposite direction of the link.]