# OS MRN Getting Started Guide

OS Multi-modal Routing Network (OS MRN) is designed for use in routing applications. Numerous different routing software applications are available. 

This guide includes instructions to get you started with using OS MRN in three open-source routing applications:

* [pgRouting](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-multi-modal-routing-network/os-mrn-getting-started-guide/pgrouting) – for GeoPackage (GPKG) and Protocolbuffer Binary Format (PBF)
* [GraphHopper](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-multi-modal-routing-network/os-mrn-getting-started-guide/graphhopper) – for PBF
* [OpenTripPlanner ](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-multi-modal-routing-network/os-mrn-getting-started-guide/opentripplanner)– for PBF

The guide also has a page on [working with OpenStreetMap (OSM) files](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-multi-modal-routing-network/os-mrn-getting-started-guide/working-with-openstreetmap-files), where you will find guidance on:

* [What tools you can use to convert from PBF to OSM XML](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-multi-modal-routing-network/os-mrn-getting-started-guide/working-with-openstreetmap-files)
* [Sorting OSM files](https://docs.os.uk/os-downloads/products/transport-network-portfolio/os-multi-modal-routing-network/os-mrn-getting-started-guide/working-with-openstreetmap-files)

{% hint style="info" %}
The ability to carry out multi-modal routing is dependent on the software you use. To make full use of the functionality of OS MRN, you may need to make configuration changes to your software, for example, configuring it to use the speed data or time conditional attributes. It is also possible to use third party datasets, such as bus and train timetables, with OS MRN to enhance multi-modal routing. 
{% endhint %}

## How to get this product

OS MRN data can be downloaded from the [OS Data Hub](https://osdatahub.os.uk/) (for further guidance, please see [Creating data packages and downloading data](https://osdatahub.os.uk/support/download#whatIsADataPackage)).