[OSM-talk-ie] building:levels=*

[Heikki Vesanto]

Definitely interesting stats.

I would interprate -2 for example as a hole (which also functions as a
building) that is 2 levels deep. But levels probably isn't the tag to store
that info. 0 makes sense for buildings that are underground.

A .5 makes seems logical to me. Some offices will have a mezzanine and
depending on the height and layout could be considered a half floor. Some
buildings also have stories in between stories. So a full two story house
in the front, with a story at the back which is vertically between the two.

But I don't think the other decimals make much sense, to me it would seem
like a mistake.

-Heikki

On Tue, 27 Oct 2020, 13:37 Colm Moore, <colmmoore72 at hotmail.com> wrote:

> Hi,
>
> There's a discussion at
> https://twitter.com/CiaranStaunton/status/1320505496105820163 on
> building:levels=* https://wiki.openstreetmap.org/wiki/Key:building:levels
> which is used for marking the number of above-ground levels of a building.
>
> There are about 3,000 entries on Ireland where the number isn't a whole
> number. Sometimes this may represent the likes of dormer buildings, which
> are sometimes described colloquially as and one-and-a-half-storey or
> two-and-a-half-storey houses. in other cases, it may have been used instead
> of height=*.
>
> I'm wondering if anyone has any insights as to how people were
> interpreting the tag.
>
> Colm
>
> PS And yes, I mapped a bunch of zero-storey buildings. :)
>
>
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