- Home
-
Public Sector
Public Sector
Quick links to popular content
- Business
-
Leisure
Leisure
OS getamap – print your route
Have your map custom made
Visit our shop
Read our magazine
-
Education & Research
Education & Research
Schools
Further & Higher Education
Research
General interest
-
About us
About us
Quick links
- Support
Feature types and attribution in the Road Routing Information theme
Go to: RoadNodeInformation | RoadLinkInformation | RoadRouteInformation | RoadPartialLinkInformation | RoadPartialRouteInformation | DepartedFeature
In OS MasterMap® Integrated Transport Network™ Layer (ITN), features are classified using feature type and feature description attributes. This page describes the feature types in the Road Routing Information theme, illustrates their permitted attribution and shows the expected occurrence of the attributes for each feature type in the data. These occurrences are shown in UML notation; 0 for optional, 1 for a single, * for multiple, and ‘or’ being represented by double dots (..).
RoadNodeInformation
Information that may influence a driver’s choice of route and that applies to a RoadNode feature in the network.
Examples would be a mini roundabout at a RoadNode representing the intersection of carriageways or a restricted height clearance at a RoadNode representing the crossing of carriageways where a bridge carries one road over another.
|
Feature type: RoadNodeInformation |
||||
|
Attribute |
Cardinality |
Type |
Mandatory |
Notes |
|
TOID |
1 |
Identifier |
Yes |
|
|
version |
1 |
Integer |
Yes |
|
|
versionDate |
1 |
Date |
Yes |
|
|
changeHistory |
* |
Complex |
No |
|
|
descriptiveGroup |
1 |
Fixed String |
Yes |
‘Road Topology’ |
|
referenceToRoadNode |
1 |
TOID reference to RoadNode |
Yes |
A Reference to the RoadNode this feature connects to. |
|
dateTimeQualifier |
0..* |
Period |
No |
dateTimeQualifiervalues |
|
vehicleQualifier |
0..* |
(varies) |
No |
vehicleQualifiervalues Width, length and weight restrictions are found in the road network. Height restrictions may be indicated and are therefore included in the model. |
|
environmentQualifier |
1..* |
(varies) |
No |
environmentalQualifiervalues |
|
theme |
1 |
Fixed String |
Yes |
‘Road Network’ |
RoadLinkInformation
Information that may influence a driver’s choice of route and that applies to a single RoadLink feature in any direction of travel. Such information may apply to an entire RoadLink or be information that relates to a point along a RoadLink.
Examples of restrictions potentially applying to an entire link could be access restrictions, such as ‘no access for unauthorised vehicles’ or ‘residents only’, or information such as the presence of traffic-calming measures along a RoadLink.
Restrictions related to a single RoadLink, where the location of the information in relation to the RoadLink is important, include features such as level crossings, gates, fords and height restrictions not associated to a road bridge. Where location along a link is relevant and available, this information is supplied as both National Grid coordinates and the distance along the RoadLink from its start point.
Note: If position is required, distanceFromStart and point are both supplied.
|
Feature type: RoadLinkInformation |
||||
|
Attribute |
Cardinality |
Type |
Mandatory |
Notes |
|
TOID |
1 |
Identifier |
Yes |
|
|
version |
1 |
Integer |
Yes |
|
|
versionDate |
1 |
Date |
Yes |
|
|
changeHistory |
* |
Complex |
No |
|
|
descriptiveGroup |
1 |
Fixed String |
Yes |
‘Road Topology’ |
|
referenceToRoadLink |
1 |
TOID reference to RoadLink |
Yes |
A reference to the RoadLink this feature connects to. |
|
dateTimeQualifier |
0..* |
Period |
No |
dateTimeQualifiervalues |
|
vehicleQualifier |
0..* |
(varies) |
No |
vehicleQualifiervalues Width, length and weight restrictions are found in the road network. Height restrictions may be indicated and are therefore included in the model. |
|
environmentQualifier |
1..* |
(varies) |
No |
environmentalQualifiervalues |
|
distanceFromStart |
0..1 |
Real |
No |
If relevant and available, the distance from the start of the RoadLink feature. |
|
point |
0..1 |
Point (coordinates) |
No |
If relevant and available, the location or the end point of the section (coincident with the vertex on the RoadLink) |
|
theme |
1 |
Fixed String |
Yes |
‘Road Network’ |
RoadRouteInformation
Information that may influence a driver’s choice of route and that applies to one or more RoadLink features in a specified direction of travel. Examples would be turn restrictions (which apply to multiple links), one-way streets (which affect a single link in a specified direction) and access restrictions that apply in one direction only. Where location along a RoadLink is relevant and available, this information is supplied as both National Grid coordinates and the distance along the RoadLink from its start point.
|
Feature type: RoadRouteInformation |
||||
|
Attribute |
Cardinality |
Type |
Mandatory |
Notes |
|
TOID |
1 |
Identifier |
Yes |
|
|
version |
1 |
Integer |
Yes |
|
|
versionDate |
1 |
Date |
Yes |
|
|
changeHistory |
* |
Complex |
No |
|
|
descriptiveGroup |
1 |
Fixed String |
Yes |
‘Road Topology’ |
|
directedLink |
1..* |
TOID reference to RoadLink features. |
Yes |
An ordered set of directed references to the RoadLink features this information applies to. |
|
dateTimeQualifier |
0..* |
Period |
No |
dateTimeQualifiervalues |
|
vehicleQualifier |
0..* |
(varies) |
No |
vehicleQualifiervalues Width, length and weight restrictions are found in the road network. Height restrictions may be indicated and are therefore included in the model. |
|
environmentQualifier |
1..* |
(varies) |
No |
environmentalQualifiervalues |
|
distanceFromStart |
0..1 |
Real |
No |
If relevant and available, the distance from the start of the RoadLink of the feature. |
|
point |
0..1 |
Point (coordinates) |
No |
If relevant and available, the location or the end point of the section (coincident with the vertex on the RoadLink) |
|
theme |
1 |
Fixed String |
Yes |
‘Road Network’ |
Note: If position is required, distanceFromStart and point are both supplied. If the directedLink cardinality is >1, these two values are not supplied.
RoadPartialLinkInformation
Information that may influence a driver’s choice of route and that applies to a portion of a single RoadLink feature in any direction of travel. An example would be an access restriction, such as a pedestrianised area, that may be used by vehicles at specific times and only applies to ‘x’ amount of RoadLink.
Location along the RoadLink is supplied as both National Grid coordinates and the distance along the RoadLink, from its start point to the start and end of the section the information applies to.
|
Feature type: RoadPartialLinkInformation |
||||
|
Attribute |
Cardinality |
Type |
Mandatory |
Notes |
|
TOID |
1 |
Identifier |
Yes |
|
|
version |
1 |
Integer |
Yes |
|
|
versionDate |
1 |
Date |
Yes |
|
|
changeHistory |
* |
Complex |
No |
|
|
descriptiveGroup |
1 |
Fixed String |
Yes |
‘Road Topology’ |
|
referenceToRoadLink |
1 |
TOID reference to RoadLink |
Yes |
A reference to the RoadLink this feature connects to. |
|
dateTimeQualifier |
0..* |
Period |
No |
dateTimeQualifiervalues |
|
vehicleQualifier |
0..* |
(varies) |
No |
vehicleQualifiervalues Width, length and weight restrictions are found in the road network. Height restrictions may be indicated and are therefore included in the model. |
|
environmentQualifier |
1..* |
(varies) |
No |
environmentalQualifiervalues |
|
subsectionDistance |
2 |
Real |
Yes |
The distance in metres from the start of the RoadLink to the information feature. |
|
subsectionPoint |
2 |
Point |
Yes |
XY coordinate |
|
theme |
1 |
Fixed String |
Yes |
‘Road Network’ |
RoadPartialRouteInformation
Information that may influence a driver’s choice of route and that applies to a portion of a single RoadLink feature in a specified direction of travel. An example would be an access restriction that applies to a portion of a RoadLink.
Location along the RoadLink is supplied as both National Grid coordinates and the distance along the RoadLink, from its start point to the start and end of the section the information applies to.
|
Feature type: RoadPartialRouteInformation |
||||
|
Attribute |
Cardinality |
Type |
Mandatory |
Notes |
|
TOID |
1 |
Identifier |
Yes |
|
|
version |
1 |
Integer |
Yes |
|
|
versionDate |
1 |
Date |
Yes |
|
|
changeHistory |
* |
Complex |
No |
|
|
descriptiveGroup |
1 |
Fixed String |
Yes |
‘Road Topology’ |
|
referenceToRoadLink |
1 |
TOID reference to RoadLink |
Yes |
A reference to the RoadLink this feature connects to. |
|
dateTimeQualifier |
0..* |
Period |
No |
dateTimeQualifiervalues |
|
vehicleQualifier |
0..* |
(varies) |
No |
vehicleQualifiervalues Width, length and weight restrictions are found in the road network. Height restrictions may be indicated and are therefore included in the model. |
|
environmentQualifier |
1..* |
(varies) |
No |
environmentalQualifiervalues |
|
subsectionDistance |
2 |
Real |
Yes |
The distance in metres from the start of the RoadLink to the information feature. |
|
subsectionPoint |
2 |
Point |
Yes |
XY coordinate |
|
theme |
1 |
Fixed String |
Yes |
‘Road Network’ |
In addition, if Change-Only Update (COU) supply has been provided, the data may contain information about the movement and deletion of features. These changes are represented by the following feature type:
DepartedFeature
A DepartedFeature indicates that a feature in a previous supply may no longer be relevant; for example, it may have been deleted or moved. This feature type is used in COU data supply only.
In this section:
ITN Technical specification – home
ITN Road Routing Information (RRI) theme
ITN Path Routing Information (PRI) theme
Feature types and attribution in the Road Network theme
Feature types and attribution in the Road Routing Information theme
Feature types and attribution in the Urban Paths Network theme
Feature types and attribution in the Path Routing Information theme
Descriptions of ITN Layer attributes
Attribution checklists for the Road Network and Urban Paths Network themes
ITN attribute definitions and values
This web page is part of the technical specification for OS MasterMap® Integrated Transport Network™ Layer. For the terms that apply to use of this specification, refer to Purpose of this specification.