Key:surface:note

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Public-images-osm logo.svg surface:note
Description
Note specifically describing the surface of a feature. Show/edit corresponding data item.
Group: properties
Used on these elements
may be used on nodesmay be used on waysmay be used on areas (and multipolygon relations)should not be used on relations (except multipolygon relations)
Requires
Useful combination
Status: in use

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=.. the surface:note=* 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

References