OS MasterMap® Integrated Transport Network layer
The ITN Layer is a detailed, accurate and up-to-date digital dataset consisting of a Roads Network theme and a Road Routing Information (RRI) theme for Great Britain.
The Roads Network contains road categories, from motorways and primary routes to named and unnamed minor roads and local streets.
RRI contains features such as height, weight and width restrictions; traffic calming; turn restrictions; and one-way roads as well as vehicular access and time restrictions.
The ITN Layer attributes and features
Road network
- Motorway
- A road trunk
- A road primary
- A road
- B road
- Minor road
- Local street
- Alleyway
- Private road with public access
- Private road with restricted access
- Pedestrianised street
Forms of way
- Single and dual carriageway
- Slip road
- Enclosed traffic area
- Traffic island
- Roundabout
Routing information
- Bridge height
- Weight restriction
- Width restriction
- Mini roundabout
- No entry road
- One way road
- Through route
- Severe turn
- Bridge over road/bridge under road
- Access prohibition
- Turn restriction
- Traffic calming
- Roundabout
- Physical barrier and gate
- Rising bollard
- Level crossing
- Ford
- Toll indicator
- Ferry terminal
- Firing range
Further information on MasterMap Integrated Transport Network (ITN) is available to registered users within the Digimap service.
Contact us at: edina@ed.ac.uk
EDINA, Causewayside House
160 Causewayside, Edinburgh
United Kingdom EH9 1PR
EDINA is the Jisc-designated national data centre at the University of Edinburgh.
