On Sun, 19 Jan 2020 at 00:20, Joseph Eisenberg <joseph.eisenb...@gmail.com>

> Should we remove some of the rare values of "emergency=" which have
> got into Map Features?

No just because it's may have a low tag count doesn't mean it's not a good

> Like some other key pages, the Key:emergency page is a big list of
> features generated from a template, and the same template goes
> straight to the main list of Map Features.
> This is probably why the Map Features page section for "Emergency" has
> 24 values, even though half of them are rarely used and very few were
> every approved.

Being visible on Map Features makes these tags easier to find for
newcomers. Even less common features should be there otherwise we'll just
end up the more popular tags getting used even more and the less common
tags won't and so OSM misses out on valuable data not being entered since
newcomers don't realise they can map it in OSM.

> These are the ones that seem questionable and maybe should not be
> shown on this page for new users:
> 1) emergency=fire_flapper "A wildland firefighting tool also called a
> swatter or a beater. It is designed for extinguishing minor fires in
> rural areas such as heaths." - 46 uses
> - I plan to remove this from Map Features
> ) =mountain_rescue - "A mountain rescue base for a team providing
> search and rescue services in mountainous environments" - 185 uses
> - Remove: rare tag, only relevant in some regions.

This seems okay, do you have a suggestion on how else one should tag a
mountain rescue base?

> 3) =drinking_water - "A facility that provides drinking water in
> emergency situations" 1155
> - Remove: it was just added, and definition is confusing
> 2) =fire_water_pond " A man made or natural pond with water for a fire
> department." 2785 uses
> - Remove: This tag isn't verifiable, or else it could be added to any
> pond or small lake. It's not much used outside of Germany.
> 3) =access_point "A sign number which can be used to define your
> current position in case of an emergency" - 5555 uses
> - Remove: the similar tag 'highway=access_point" is much more common
> and was approved.

I disagree, this tag is well defined and documented, I agree it seems to be
defined exactly the same as highway=emergency_access_point. I think under
the emergency key is better since it may not be nearby or related to roads
at all.

> These 3 I don't know how to handle:
> ) =fire_hose "A high-pressure hose used to carry water or other fire
> retardant (such as foam) to a fire to extinguish it." - 1115 uses
> - Uncertain: rather rare tag, though it does not seem to have any problems

I disagree, this it's well documented and very useful in case of fire and
fire preparedness to know where the fire hose is.

> ) =landing_site "Preselected flat area for a helicopter to land in an
> emergency" 2543 uses
> - Uncertain: the tag aeroway=helipad is more common, and the
> distinction  is unclear

I disagree, others in this thread have already pointed out the difference.

> ) =lifeguard, lifeguard_base, lifeguard_tower, lifeguard_platform -
> none is over 700 uses, total is under 1500 combined.
> - Not clear how to distinguish these - should any be on Map Features?
> Just "emergency=lifeguard", the most common?

I disagree. I believe the iD preset is just emergency=lifeguard but that's
like highway=road just a placeholder until you can choose the more specific
lifeguard_base, lifeguard_town, lifeguard_platform.

The wiki does an excellent job at highlighting the differences.
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