June 2025

This release note provides information about the June 2025 release of OS MasterMap Highways Network.

Source data currency

The following information relates to the currency of the source data used in the creation of this release of OS MasterMap Highways Network:

Data Source	Date
GeoPlace Streets Data	08 May 2025
Improvement Service Streets Data	05 May 2025
OS Road, Path, and Routing Content	06 May 2025

OS MasterMap Highways Network feature counts

Roads’ Feature	Count
AccessRestriction	35 756
FerryLink	102
FerryNode	132
FerryTerminal	132
Hazard	42 082
HighwayDedication	3 608 590
Maintenance	1 319 836
Reinstatement	1 529 021
RestrictionForVehicles	12 127
Road	855 145
RoadLink	8 516 318
RoadNode	7 546 669
RoadJunction	6 886
SpecialDesignation	789 963
Street	1 492 573
Structure	1 387 879
TurnRestriction	1 048 276

Paths’ Feature	Count
ConnectingLink	1 998 035
ConnectingNode	1 854 928
FerryLink	112
FerryNode	200
FerryTerminal	200
HighwayDedication	407 211
Maintenance	206 008
Path	25 359
PathLink	3 342 678
PathNode	3 945 388
Reinstatement	211 188
SpecialDesignation	12 995
Street	258 420

Data issues

Please see the OS MasterMap Highways Network Known Data Issues page for details of live and resolved data issues for the products.

Product Updates

As part of our forward scoping, we are currently reviewing the use of the Open Roads Lookup Table CSV included in the OS MasterMap Highways data packages (available in the resources folder).

We are particularly interested in understanding how the link between Highways and Open Roads is being used in practice, and how widespread its adoption is.

If you actively use the lookup CSV and are happy to share your use cases or provide feedback, we’d love to hear from you. Please get in touch with the Networks Product Team at [email protected].

Next release

The next release of OS MasterMap Highways Network is scheduled for July 2025