<div dir="ltr"><div>I think <a href="https://wiki.openstreetmap.org/wiki/Key:level">https://wiki.openstreetmap.org/wiki/Key:level</a> reads well now, though I think some graphics showing how it relates to level:ref would be very helpful.</div><div><br></div><div>For the signposted level whether that's a number or letter or combination use level:ref=*. level=* is purely a numeric count of the floors for data consumers and is never guaranteed to correspond with the signage. As such level:ref=* should always be used as the display for users and never level=*. level=* should only ever be used behind the scenes to render the map.</div><div><br></div><div>So a building which starts from level 1, and then has level 2, skips 3, then level 4 would be</div><div><br></div><div>level:ref=1 + level=0</div><div>level:ref=2 + level=1</div><div>lever:ref=4 + level=2</div><div><br></div><div><br></div><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 16 Mar 2022 at 01:25, Marc_marc <<a href="mailto:marc_marc@mailo.com">marc_marc@mailo.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Le 15.03.22 à 08:05, Minh Nguyen a écrit :<br>
> it states a clear preference for level=0 to represent <br>
> the ground floor, even in regions where the ground floor is normally <br>
> called the first floor.<br>
<br>
I consider that level is linked to the local numbering of the building <br>
(if present). so if a building has a level 12 and then 14, I will never <br>
fill in level=13, no matter if it is in a country where the ground is <br>
represented by 0 or 1<br>
in the same way, if a building has a level 0 0.5 1, I don't see any <br>
reason to invent another numbering which often becomes incomprehensible <br>
(osm would be unwise to give a company a level=x when it is something <br>
else indicated on the spot)<br>
<br>
> Anecdotally, if such tagging ever came to the attention of mappers on <br>
> talk-us or OSMUS Slack, I'm pretty sure it would be quickly identified <br>
> as an error.<br>
<br>
the best thing would be to talk to them about it (and until then, we can <br>
consider the tag as poorly documented and therefore not usable in this <br>
country)<br>
<br>
> For a more holistic analysis<br>
<br>
I very rarely put level=0 and almost systematically level=1,<br>
do you deduce that I'm in a country where level=1 is dominant ?<br>
no, I simply didn't put level=0 on 99% of the items I create<br>
if the building have no level<>0 items, I nearly never add level=0<br>
to shop at the ground level for ex.<br>
I'm not saying it's a good thing, it's just my experience.<br>
<br>
Regards,<br>
Marc<br>
<br>
<br>
<br>
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</blockquote></div></div>