🆕Transport networks in the OS NGD

This explainer goes through transport networks in the OS NGD and how the data and feature types in the collections fit together.

How is transport represented in the OS NGD?

OS represents transport in two different ways in the OS National Geographic Database (OS NGD):

• Transport features: Topographic polygons and lines representing the physical transport environment. These features represent the real-world transport infrastructure, for example, road carriageways, railways and pathways. Further detailed information and technical specifications can be found on the OS Transport Features Collection page.

• Transport network and routing and asset management information: Fictitious networks representing the road, path, ferry and rail networks and how you can move along them, between them, the rules governing this movement and information about their management. Further detailed information and technical specifications can be found on the OS Transport Network and OS Routing and Asset Management Information (RAMI) Collection pages.

The following pages will mainly concern feature types in the OS Transport Network and OS RAMI Collections. The OS Transport Network Collection consists of several different but connected topologically structured link and node networks representing roads, paths, ferries and rail. Roads and paths have additional routing and asset management information associated with them, which is covered by the OS RAMI Collection.

The feature types in the OS Transport Features Collection are covered in the final page: Transport features.

The Building routable transport networks page lists the core and optional OS NGD feature types you'll need to use to build various routable transport networks (path and road, road only, path only, ferry, and rail).

Index:

• Building routable transport networks

• Road network

• Routing information

• Streets and asset management information

• Other road network information

• National street gazetteers, GeoPlace and Improvement Service

• Path network

• Ferry network

• Rail network

• Transport features

OS Multi-modal Routing Network product also available and useful for multi-modal routing of people and goods

The OS Multi-modal Routing Network (OS MRN) product combines OS Road, Rail, Path and Ferry Network data into a single routable network 'out of the box', designed in Open Street Map schema to facilitate easy integration with routing applications. For more information, please view the OS Multi-modal Routing Network documentation.