Unlinks incorrect with OSM data sets

[jorgegil]

The unlinks layer results shows dozens of unlinks where there should only be a handful.

After inspecting the result I notice that unlinks are created on segments that after cleaning are (correctly) split. These segments were not broken originally but shared nodes with an incident segment.

I suspect that the identification of unlinks has to happen at the end of the process, after cleaning. Not before.

[Anafi]

If creating unlinks happens after the breaking and merging of the lines, this will cause an issue for the OS data. In OS data unlinked segments share a vertex and therefore the lines are broken at those vertices.

So it seems that in OS the creation of unlinks has to happen at the beginning of the cleaning process whereas in OSM at the end of it.

[Anafi]

To get correct unlinks with OSM data, clean the layer twice. The second set of unlinks can be used . However, it needs to be verified with the Unlinks Verification of the SSxToolkit.