Identifying Change in the Network
Use cases
Identify which features change and how that affects other information related to it.
Identify physical change to the road network.
Identify roads under construction and affects on service provision.
Steps to Success: Identifying Change in the Operational State of a Street
Common attribute is across all features
Gives the reason why a feature has changed using these values
Code | Description |
---|---|
New | New feature has been added |
Modified Geometry | The geometry of the feature has been altered |
Modified Attributes | One or more attribute properties have been altered |
Modified Geometry and Attributes | Geometry and attribution properties have been altered |
Considerations When Adding Your Own Data to OS MasterMap Highways
Back up your data.
Use feature validation data set (FVDS) to check which features are affected and how (TOID value and UPDATE, INSERT or DELETION).
Connect data to either TOID or USRN as this are persistent with a finite life cycle.
Further useful information:
BeginLifespanVersion – gives date of when the object was inserted or changed in the data
Validfrom – data when the custodian entered the data into LSG (Street records)
Things to Note: Data Captured Against OS MasterMap ITN Layer is Easily Transferred Over to OS MasterMap Highways
TOIDS are persistent across both products and have not changed
Data linked to ITN using TOID should link to Highways
FVDS can be used to identify where a reference may have changed
Steps to Success: Identifying Change in the Operational State of a Street
Operational State – indicates the construction status of the street
Streets – all values are permitted, default is open
RoadLink – Operational status defaults to open, although may occasionally be under construction
Special designations table – provides additional information and can be linked directly to Street by USRN.
Code List: OperationalStateValue
Code | Description |
---|---|
Prospective | Plans have been submitted for development but construction has not commenced. |
Under Construction | Construction has commenced but the road cannot be used. |
Open | Open |
Temporarily Closed | The way has been temporarily closed for a specified reason under Road Traffic Regulation Act 1984 Section 14 1(b): • Streetworks • likelihood of danger to public • Litter clearing or cleaning (duty imposed by section 89(1)(a) or (2) of the Environmental Protection Act 1990 (litter clearing and cleaning) to be discharged)
Note: The operationalState shall only be set to Temporarily Closed when the duration of the closure is intended to last more than 4 weeks. |
Permanently Closed | A Street that has been permanently blocked up according to a Stopping Up Order Constraint: If the Street operationalState = Permanently Closed then the endLifespanVersion shall be set. |
Last updated