> For the complete documentation index, see [llms.txt](https://docs.os.uk/os-downloads/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-multi-modal-routing-network/os-mrn-overview/modal-change.md).

# Modal change

The OS Multi-modal Routing Network (OS MRN) product contains modal change points to represent where you can transition between different transport modes, such as from foot to ferry or from rail to road. The OS MRN takes keys sites such as train stations, ferry terminals and car parks, and creates modal change points at these locations to enable connectivity.

Within the Transport Node Feature Type, there are modal change nodes which are derived from transport sites. A node is created and sits within the primary building of the site. It is attributed with the os\_nodetype of ‘Modal Change’.

Within the Transport Link Feature Type there are modal change links which are a linear spatial object representing a logical connection between the transport network and the transport site. These transport links connect between the network and the modal change node.

Modal change connectivity is only provided between sites and the road, rail and ferry network. Modal change points do not connect to the path network as we do not currently capture access points from paths to sites in OS data.<br>

<figure><img src="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2Fm2501YwYDDdlOOPgVrGk%2Fimage.png?alt=media&amp;token=884fd493-0960-47bb-b5df-2139cf8aabe8" alt="A schematic diagram showing the concept of a modal change point."><figcaption><p>A schematic diagram showing the concept of a modal change point.</p></figcaption></figure>

<figure><img src="https://1897589978-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FcNpJpLP8RROUaWVQo5ea%2Fuploads%2FkTMPkDegjKq7JFUinImb%2Fimage.png?alt=media&amp;token=1ace9413-4c5b-45ba-8565-431ab022a6ad" alt="Screenshot showing examples of modal change point data in OS MRN. A background map has been included for context."><figcaption><p>Examples of modal change point data in OS MRN.</p></figcaption></figure>


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