For the complete documentation index, see llms.txt. This page is also available as Markdown.

OS MRN Known Data Issues

This page lists known data issues in relation to the OS MRN product. Once resolved, details of a known data issue will be held on the page until the next release of the product.

Live known data issues

Data Issue Name
Data Issue Description

Modal Change Node attribution missing

Modal Change Points should have an os_nodetype containing 'Modal Change' and modes, for example, 'Bus Station;Coach Station;Modal Change' or 'Railway Station;Tram Station;Modal Change'. 31 281 modal change nodes currently have a NULL os_nodetype. As a result there are 77 018 Modal Change Links referencing nodes that are not Modal Change Points. This issue is being investigated by our development team.

Missing features compared to OS Transport Network Collection of the OS NGD

A small number of links (<10) are not present in OS MRN, but are present in the corresponding release of the OS Transport Network Collection in the OS National Geographic Database (OS NGD).

This issue is being investigated by our development team.

Records with unexpected vehicle restriction attribute.

A small number of features (<100) have a max height, weight, width or length value which is not in sympathy with the corresponding OS NGD transport link. This issue is being investigated by our development team.

Records with unexpected access restriction attribute.

A small number of features (<100) have 'access', 'access:forward' or 'access:backward' attribute values which are not in sympathy with the corresponding OS NGD transport link. This issue is being investigated by our development team.

To report an issue not currently listed here, please visit the 'Contact us' page on the OS website.

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