December 2025

This release note provides information about the December 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	06 November 2025
Improvement Service Streets Data	05 November 2025
OS Road, Path, and Routing Content	06 November 2025

OS MasterMap Highways Network feature counts

Roads’ Feature	Count
AccessRestriction	36 091
FerryLink	103
FerryNode	132
FerryTerminal	132
Hazard	43 281
HighwayDedication	3 624 372
Maintenance	1 325 654
Reinstatement	1 532 723
RestrictionForVehicles	12 181
Road	857 187
RoadLink	8 543 925
RoadNode	7 571 178
RoadJunction	6 890
SpecialDesignation	802 095
Street	1 497 238
Structure	1 397 662
TurnRestriction	1 050 643

Paths’ Feature	Count
ConnectingLink	2 000 606
ConnectingNode	1 856 849
FerryLink	118
FerryNode	206
FerryTerminal	206
HighwayDedication	410 455
Maintenance	206 784
Path	25 423
PathLink	3 352 420
PathNode	3 955 692
Reinstatement	211 946
SpecialDesignation	13 237
Street	259 582

Data issues

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

We aim to publish a refreshed OS Open Roads Lookup table with OS MasterMap Highways Network – Roads and OS MasterMap Highways Network – RAMI orders twice a year, in line with OS Open Roads publication (April and October). Due to unexpected delays, the refreshed lookup table for October data will be published with the December OS MasterMap Highways Network publication.

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 January 2026.