There is emergency=life_ring
, however some places instead have a throw rope or a float on a rope that isn’t in the shape of a ring.
(Some people would argue that ropes are safer than rings since you’re less likely to do damage to the person in the water, but that’s a side point.)
It seems slightly silly having a new tag for something with the same essential function. So you could have emergency=life_ring
and then life_ring=life_rope
, but it isn’t a ring, so feels wrong to tag as such.
If we were starting from scratch maybe something like emergency=life_saving_equipment
and then equipment=life_ring
or equipment=life_rope
etc.