How to tag signs? https://wiki.openstreetmap.org/wiki/Key:information doesn't do justice to their alarming nature. Note they might not be near a highway so are not highway signs. E.g., near a dangerous pond that every other year has kids drown in it. https://wiki.openstreetmap.org/wiki/Proposed_features/Hazard_warning was rejected. asked 13 Oct '18, 12:23  jidanni |
One Answer:
Tag info can be used to see what others have used, or get ideas to make a new one. This is what key= warning lists. https://taginfo.openstreetmap.org/keys/warning But Danger and Hazard could also be used with deep water or drowning risk for example. Your heading " warning = danger_of_drowning " seems good to me. answered 14 Oct '18, 09:59  andy mackey edited 14 Oct '18, 10:12 1 I tend to use approved items that I find on the wiki. But as this concerns "life and death" maybe something like adding warning=danger, danger=drowning. (14 Oct '18, 18:19) jidanni |
OK, apparently the best one can do is the bland: tourism=information
information=board
board_type=notice