[Tagging] fire hydrants

Robert Koch robert.koch at loggia.at
Sat Jun 17 18:28:22 UTC 2017


I changed the proposal at [1] to have "l/min" instead of "lpm". While
"gpm" is often used, "lpm" isn't.
Rationale: According to [2] "km/h" should be preferred over "kmph"
(which is highly discouraged).

Additionally I added "survey:date", which should be included as well.

Regarding the count: I'm on the same page as Alberto: I don't see any
advantage of having just a count. As a result I'd recommend removing
"fire_hydrant:count=#" from the wiki page.

If we gonna change the couplings tag naming, we should adapt:
https://wiki.openstreetmap.org/wiki/Proposed_features/Dry_riser_inlet

The fire_hydrant:type values without "pond" are still unclear to me: How
would I tag this one [3]
Moreover how useful is "pillar" if there is "dry_barrel" and
"wet_barrel"? How would non-fire-fighters or non-local fire-fighters tag
such pillar hydrants?


[1]
https://wiki.openstreetmap.org/wiki/Proposed_features/Fire_Hydrant_Extensions
[2]
https://wiki.openstreetmap.org/wiki/Map_Features/Units#Explicit_specifications
[3]
https://upload.wikimedia.org/wikipedia/commons/thumb/6/62/Dry_hydrant.jpg/150px-Dry_hydrant.jpg
taken from [4]
[4] https://wiki.openstreetmap.org/wiki/Tag:emergency%3Dfire_hydrant#Types


On 2017-06-16 19:42, Viking wrote:
>> for flow_capacity, should m3/h be preferred instead of lpm ?
> Normally, the best unit for fire purposes is lpm (or gpm), because you can easily determine how many minutes it takes to refill e.g. a 4500 litres fire engine. Also fire pumps specs are in lpm or gpm.
>
>> fire_hydrant:coupling_type -> fire_hydrant:coupling:type
>> fire_hydrant:couplings -> fire_hydrant:couplings:size
> Then couplings, plural:
> fire_hydrant:couplings:size = 45;45;70 / ...
> fire_hydrant:couplings:type = UNI / Storz / ...
>
>> for people unable to recognize coupling diameters, is it useful to tag 
>> their count ? Or this information has no utility ?
> Well, I think that inserting only the number of couplings would complicate the tagging scheme and would have a very little utility. I wouldn't do that.
>
> Alberto
>
>
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