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Maintenance, Reinstatement and Special Designation can have different geometry (point, line or area) or no geometry. In a non-spatial database this is not a problem and they can easily be merged into one. A spatial database will not allow mixed geometry types. It is suggested to create a new table, dropping the geometry. Link to geometry can then be preserved if required.
RAMI Specification
Maintenance
Reinstatement
Special Designation
Translation software is required to convert data from GML into chosen format. FME workbenches are available on GitHub to help with this.
Data storage – once translated the data will need to be stored in a format compatible with your systems, this may be on your file system as a shape file, geopackage or tab file or in a database.
GIS or web application to manipulate and display your results.
Create table statement with UNION ALL:
OS MasterMap Highways contains the information needed to build network data sets taking into consideration the features that control where we can drive such as one-way streets, no entry etc. The data can be used to create routes for emergency response, refuse collection or delivering goods. Adding the Path data set extends the network capabilities allowing you to generate walking routes and look at access to services such as schools and health practices.
There are a number of options for use in routing and some systems will have this built in. The most popular across the Public Sector are:
RouteFinder – Produced by a 3rd party to provide a routing engine for MapInfo Pro. Has a translator which supports Highways.
Network Analyst – The beta version in ArcGIS Pro provides support for Highways.
pgRouting – An open-source routing extension to PostGreSQL/PostGIS. Results can be displayed in any software that can supports the database however QGIS has tools for this.
CadCorp MapModeller – Has a built-in routing engine with support for Highways.
Emergency Service command and dispatch
Routes to school
Public transport planning
Optimising waste collection
Service reviews and optimisation
There are a number of options for use in routing and some systems will have this built it. The most popular across the Public Sector are:
RouteFinder – Produced by a 3rd party to provide a routing engine for MapInfo Pro. Has a translator which supports Highways.
Network Analyst – The beta version in ArcGIS Pro provides support for Highways.
pgRouting – An open-source routing extension to PostGreSQL/PostGIS. Results can be displayed in any software that can supports the database however QGIS has tools for this.
CadCorp MapModeller – Has a built-in routing engine with support for Highways.
Data
RAMI Specification
Roadlink
Roadnode
TurnRestrictions
AccessRestrictions
FerryLink
FerryNode
Hazards
Structures
And to go one step further:
Path Specification
PathLink
PathNode
ConnectingLink
ConnectingNode
Software
Translation software is required to convert data from GML into your chosen format. FME workbenches are available on GitHub to help with this.
Data storage – once translated the data will need to be stored in a format compatible with your systems, this may be on your file system as a shape file, geopackage or tab file or in a database.
Routing application to perform the routing analysis and display the results in a meaningful way.
Using your preferred method translate the GML, this will also depend on the routing application used, some have their own translators.
Build a routable network – your software will have tools to do this for incorporating the restrictions etc. For pgRouting a useful guide can be found here - https://github.com/mixedbredie/highways-for-pgrouting.
Add additional information to your network such as road speed.
You can enhance this output even further with the addition of PathLinks to make a walking network. Add these to the RoadLinks to create a new data set and then use the same steps to create a network.
Special designations contains references to which streets are gritted.
This information can be displayed against either the street geometry or road link.
Understanding which is the best route to use in winter avoiding untreated roads where possible
Emervency services
Logistics
Roads Specification
Roadlink
Street
StreetNetworkRef
RAMI Specification
SpecialDesingation_Area
SpecialDesingation_Line
SpecialDesingation_Point
SpecialDesingation_NoGeom
Translation software is required to convert data from GML into chosen format. FME workbenches are available on GitHub to help with this.
Data storage – once translated the data will need to be stored in a format compatible with your systems, this may be on your file system as a shape file, geopackage or tab file or in a database.
GIS or web application to manipulate and display your results.
Information on Gritting routes is held in the Special Designation tables. This can be viewed with a simple query for example:
However as Special Designation is split into 4 tables depending on geometry type. The results can be merged into 1 table by querying all 4 with UNION ALL and dropping the geometry from the query output.
If you are working with a large data set it may be easier to create a new table of the results. (CREATE TABLE AS…)
The results can be linked using USRN to the Street table and use the geometry to display.
However you may want to add these to RoadLink as this includes classifications as well as road name and number.
This can be achieved by linking the USRN using the StreetNetworkRef table containing TOIDS:
Use the TOID to then join the data to RoadLink, the example limits the information returned:
The output can then be displayed on a map or used as part of routable network to add a priority to roads that have been treated.
When FME writes to some databases it writes the geometry as geometry and not point, line or area.
This creates a problem for some software reading the metadata as it does not fully understand the data type.
This can be resolved by cleaning the metadata table – In PostGIS use: SELECT Populate_Geometry_Columns()
Or by pre-creating the table and in the FME writer set table handling to either ‘Use Existing’ or ‘Create If Needed’.
An SQL script can be used within FME to create the table if necessary
Query the Streets table using this string:
OS MasterMap Highways contains USRN as a unique reference for each street. This is really important as this provides a better link to addressing than the TOID information in the AddressBase Premium cross-reference table. This also gives more accurate results to users planning and using services by allowing them to link more effectively to a road. This improves a user's ability to identify properties, for use in routing; planning services such as waste management; calculating routes to school; reviewing service location and provision; identifying those affected by street works.
Identify delivery/collection addresses
Optimising waste collection
Metering
Service review and optimisation
A: AddressBase will give you a basic answer, but OSMM Highways can tell you much more… By linking across the relational mode using the unique keys in the data you can link the Roadlink geometry to AddressBase data. This will give a more reliable match than using the Cross Reference table in AddressBase as it is based upon gazetteer data.
TOID | USRN |
---|---|
Roads Specification
Roadlink
RoadLink_FormsPartof *
Roadlink TOID
And to go one step further:
Road
Street
* = SQL wildcard. This will display all columns in the data in the query result. As an alternative you can list only the columns you need separated by a comma e.g. column1, column2, column3….
Translation software is required to convert data from GML into your chosen format. FME workbenches are available on GitHub to help with this.
Data storage – once translated the data will need to be stored in a format compatible with your systems, this may be on your file system as a shape file, geopackage or tab file or in a database.
GIS or web application to manipulate and display your results.
Using your preferred method translate the GML for Roadlink, Road and Street into a format of your choosing.
To join the RoadLink geometry to addresses in AddressBase the USRN* can be used as a cross-reference. In the technical specification the USRN of the Street the RoadLink forms part is held in the RoadLink table. However, some translators will split this out into a separate table to avoid duplication into a RoadLink_FormsPartOf.
Either in your database or GIS query select the RoadLink you want to find the addresses for. In the example I want to select all properties along the A3026
Next is to link to RoadLink_FormsPartOF on TOID in both tables.
This will return a list or RoadLinks with a reference to both the Street and Road it forms part of. As the USRN is a reference to the Street we can exclude Road from our query. In the GML formsPartOf includes these references, some translators may join these in one field or create a separate column.
The final step is to link to either AddressBase Plus or Premium using the USRN. (AddressBase does not contain the USRN).
* USRN not currently populated in Scotland
Remember…
USRN in AddressBase is an integer
To remain INSPIRE compliant, OSMM Highways needs to have the USRN integer value prefixed by ‘USRN’
Solution:
Create a lookup table to combine values from AddressBase with a character field with USRN added or
Concatenate the 2 fields within your SQL query something like CONCAT(‘usrn’, usrn)
Completed SQL query:
Example output:
With an output similar to this depending on which columns you choose to return.
You can enhance this output even further by considering Road and Street features. Road feature – this represents a collection of RoadLinks that share the same name or classification number and can be used to create a list of all RoadLink TOIDs for a feature and then linked to a USRN. Street feature - Additional information on the street is contained in the Street record and can be linked to the RoadLink using the RoadLink_FormsPartOf reference.
Additional information includes:
Street Type: The type of Gazetteer record for which the USRN relates
Operational State: indicates whether the Street is proposed, under construction, open, or closed (permanently or temporarily)
Responsible Authority: reference to the authority who performs an administrative function – notably naming and numbering
Local name: Unofficial local name associated to the highway
Relates to tables of restrictions and other information in RoadLink and Road tables
Relates maintenance and reinstatement in streets table
* USRN not currently populated in Scotland
RoadLine – includes name, number and alternative name
Road – includes designated name and who has designated it
Street – designated name, descriptor and local name
Street contains designated name given by name and numbering authority. Where matched this will be in the name field on the road link. Roadlink name comes from name plate from survey this will be alternative on matched streets and name on unmatched.
Adding street names to mapping
Directions for routing
Gazetter searching and identifying the correct street
Roads Specification
Roadlink
Road
Street
Translation software is required to convert data from GML into chosen format. FME workbenches are available on GitHub to help with this.
Data storage – once translated the data will need to be stored in a format compatible with your systems, this may be on your file system as a shape file, geopackage or tab file or in a database.
GIS or web application to manipulate and display your results.
Local name contains other names the authority may know a street by.
The GML and may contain multiple values for each e.g.
Note a language field is also present to indicate the language of the name, e.g. English, Welsh or Gallic. These can either be held as one or split into multiple fields.
Once translated the road names can be added to either roadlink or street geometry using the labelling tools within your chosen software.
You may want to combine names across tables, for instance, to display the local name with the road name on the roadlink There are a number of ways to do this:
Construct are query in your labelling tool.
Append local name from street to roadlink.
Create a new table of roadlinks with the columns containing the labels.
This playbook provides simple ways to tackle common questions about OS MasterMap Highways
Focus on the core job that you ultimately trying to get done.
Consider what other products will help to meet your goals
Don’t overcomplicate the task.
Start by doing a data backup.
Translate the data using our FME workbenches.
Follow the steps outline in the scenarios below to success.
The OS MasterMap Highways playbook is broken down into a series of data scenarios that might be used in data projects and step-by-step instructions on how to solve these challenges. These are:
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.
Common attribute is across all features
Gives the reason why a feature has changed using these values
Code | Description |
---|---|
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)
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
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 | 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
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.