> I don't get the right term here. I see only 222 items for power=marker and 
> nothing for power:marker=*. Which one are you refering to with 35k uses 
> please?

Probably pipeline=marker, used 35k times:
https://taginfo.openstreetmap.org/tags/?key=pipeline&value=marker

> Why not using marker=* to give its nature and another key utility=* with 
> values...

Because most mappers only add 1 tag to each new object. (Folks like
you and me are an exception - and a year ago, when I was new at this,
I only usually added 1 tag per feature). If an object can be described
with one tag, it's better to do this and create several tags, (e.g.
pipeline=marker, power=marker) rather than requiring each object to be
tagged with 2 or 3 or 4 tags. This saves mapper time and makes sure
that each object is fully described.

- Joseph

On 9/7/19, François Lacombe <fl.infosrese...@gmail.com> wrote:
> Hi all,
>
> Thank you for yout contributions
>
> Le ven. 6 sept. 2019 à 09:13, Joseph Eisenberg <joseph.eisenb...@gmail.com>
> a écrit :
>
>> I'm still opposed to this proposal:
>>
>
> Answers provided at
> https://wiki.openstreetmap.org/wiki/Talk:Proposed_features/Utility_markers_proposal#Oppose_deprecating_pipeline.3Dmarker_and_marker.3Dstone
>
> Le ven. 6 sept. 2019 à 09:18, Jez Nicholson <jez.nichol...@gmail.com> a
> écrit :
>
>> Arriving fresh to a proposal, my first action would be to look at what is
>> currently in OSM. There are 6,043 "marker"="stone", which is 81.5% of the
>> usage of "marker" in OSM. I would expect the proposal to support current
>> usage.
>>
> I respectably disagree on that point.
> Biggest problem is that current usage isn't documented, and may not have
> been reviewed like we are doing right now.
>
> This proposal aims to define values for marker=* to describe utility
> markers.
> Despite marker=stone may be unconsistent with what is proposed, it doesn't
> make it incompatible and this proposal only notices this fact without
> thinking of deprecating it.
>
> I would then look at "power":"marker" and be very concerned to see 35,288
>> tags. That's a very strong existing usage. You might be lucky that power
>> markers aren't as useful to render as power lines, etc.
>> https://openinframap.org/#12.2/49.49246/0.21175
>>
> I don't get the right term here. I see only 222 items for power=marker and
> nothing for power:marker=*
> Which one are you refering to with 35k uses please?
>
> One of the goals is precisely to get a comprehensive render with marker=*
> for many kind of markers, not only pipeline ones.
>
> Le ven. 6 sept. 2019 à 12:20, Martin Koppenhoefer <dieterdre...@gmail.com>
> a écrit :
>
>> I would rather have expected a generic description of the marker, like
>> marker=
>> post
>> cone
>> sign
>> ...
>> aerial_marker (maybe this should be a property, not a type? This seems to
>> be a quite interesting property for our context)
>>
>
> Ok this one is really interesting.
> Why not using marker=* to give its nature and another key utility=* with
> values "gas", "power", "telecom", "water"... ?
> Seems it is already used:
> https://taginfo.openstreetmap.org/keys/utility#values
>
> marker=* + utility=* give a "utility marker", right?
>
> All the best
>
> François
>

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