A sequence of 26 changesets over the last 6 months* has replaced several tags used to define the area of landforms created by landslides with hazard=landslide.
The tags that were replaced with hazard=landslide are:
natural=area of the landslide-
natural=شلال معركة السلالم(“Staircase battle chute” according to Google Translate) natural_2=landslidenatural=lansdslidenatural=land_slidenatural=Landslidenatural=slidenatural=landslipnatural=slipnatural=broken_groundgeological=landslipnatural=landslidesgeological=landslidegeological=mass_movement
The replacement with hazard=landslide seems to have been a misunderstanding of how the tag should be used. The OSM Wiki describes the hazard=landslide tag as indicating designated areas where landslides are known to occur, e.g., by tagging a sign placed to warn people about the area. So this tag would seem to be appropriate only where the danger of landslides has been officially designated.
In contrast, the natural=landslide page describes the use of the tag to mark the area of a debris field of a landslide. This page also proposes the use of the geological=landslide tag for “historical” landslides.
Four of the 26 changesets were recently reverted by DWG as undiscussed mechanical edits. However, the remaining changesets are still in place. I have three questions about the remaining changesets:
- Should the remaining changesets be reverted in part to restore the tags that were in OSM before these changes?
- If the original tags are restored, should some of the obvious synonyms be changed to
natural=landslide? - Should the
hazard=landslidetag be removed from the landforms created by recent or historical landslides or should this tag be retained? (That is, are all former landslides currently hazards?)
* The OSMCha link above includes two extraneous changesets in the results.
10 posts - 5 participants
Ce sujet de discussion accompagne la publication sur https://community.openstreetmap.org/t/various-landslide-tags-replaced-with-hazard-landslide/101466