Key:surface:note
 surface:note
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| Description |
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Note specifically describing the surface of a feature. 
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| Group: properties |
| Used on these elements |
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| Requires |
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| Useful combination |
| Status: in use |
| Tools for this tag |
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Note specifically describing the surface of a feature.
Useful in cases where more specific value than surface=paved/surface=unpaved appears to be unfeasible, for example surface=paved + surface:note=concrete on one side and asphalt on the other side. this spans the whole road
Tag existing since a long time, with explosive growth since it started being used by StreetComplete[1]
StreetComplete applies it in case of all following applying at once:
- mapper is unable to select any single specific surface value for way
- mapper has not split way in parts of a different surface each
- mapper decided to not leave note or skip the task
- mapper selected surface=paved or surface=unpaved as an answer and provided surface description
Some of used values are not useful and can be removed/replaced. For example surface=paved + surface:note=wood can be replaced with surface=wood which is a better way of tagging the same info.
And in case of surface=paved + surface:note=.. such note provide no info - and is useless, confusing and pointless and can be removed.
https://gitlab.com/matkoniecz/osm-automation/-/blob/master/script_assisted_cleanup/tag_migrator_cleanup_surface_note.py is a tool that can be used to detect such cases, review them and efficiently make such edit