OS MasterMap^® Integrated Transport Network™(ITN) 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.

How the ITN Layer can be used?

How can the ITN Layer benefit you?

ITN Layer specific information

• Attributes
• Case studies
• Errors/omissions feedback form
• FAQs
• ITN Layer forum
• Latest news
• Sample data
• Satellite navigation
• Supplementary data files
• User guide
  Technical demo
• Technical specification

General OS MasterMap information

• Technical information
• Service information
• Frequently asked questions
• Pricing
• OS MasterMap demonstrations
• OS MasterMap in action
• Existing customer information