[Tagging] Feature Proposal - RFC - addr:interpolation on closed ways and nodes

[Brian M. Sperlongano]

Would this work for addressing schemes that use a hyphenated prefix?

In Hawaii, addresses outside of the city of Honolulu use a two-digit prefix
in addresses to determine which sector of the island an address is
located.  So an address might be something like "99-123 Kamehameha
Highway".  Would this scheme work for an apartment complex that's addressed
something like 99-100 through 99-200 <Street Name>?

On Mon, Dec 21, 2020 at 1:15 PM Mateusz Konieczny via Tagging <
tagging at openstreetmap.org> wrote:

> I like this new tag.
>
> I had proposing something like that on my TODO list.
>
> I added it in https://www.openstreetmap.org/changeset/96211869
> <https://www.openstreetmap.org/changeset/96211869#map=17/50.07743/19.93381&layers=N>
> to mark addr:housenumber=1-3 as a single address, not a range
> (based on survey that I remember well)
>
> Dec 21, 2020, 19:05 by tagging at openstreetmap.org:
>
> Okay. In this case I can rename to proposal page to "addr:range".
>
> This new tag:
>
> - applies to nodes and closed ways that have addr:housenumber
> - "addr:range=n" means every nth house is counted in a range
> - "addr:range=even/odd" means every even/odd house is counted
> - "addr:range=all" means every house is counted (default value for a
> housenumber tag with a hyphen in it if no range is given).
> - "addr:range=no" means that the housenumber tag is NOT a range of values
> but rather a single housenumber.
>
> "addr:range=all" is the default because that is what the wiki says and
> what software like streetcomplete suggests. Many buildings with multiple
> housenumbers are tagged like this.
>
> However, software can create different defaults for different countries.
> For example, in the UK a hypenated address most probably means a range of
> even/odd addresses (so "addr:range=2")
>
> What are your thoughts on this?
>
> Also, I had linked the talk-gb thread, which discusses how
> addr:interpolation on closed ways and nodes is already standard. That is
> the problem with suggesting a new tag. This proposal would now require
> informing multiple mappers to switch up the taggong scheme.
>
> Thanks,
> IpswichMapper
>
> --
>
>
> 21 Dec 2020, 15:19 by lonvia at denofr.de:
>
> On Mon, Dec 21, 2020 at 02:37:08PM +0100, ipswichmapper--- via Tagging
> wrote:
>
>
> https://wiki.openstreetmap.org/wiki/Proposed_features/addr:interpolation_on_closed_ways_and_nodes
>
> Quick proposal I just created to accept this form of tagging. This follows
> from a discussion on the Talk-GB mailing list.
>
> https://lists.openstreetmap.org/pipermail/talk-gb/2020-December/025553.html
>
>
> Please comment if there are issues with accepting this form of tagging.
>
>
> I dislike this kind of tagging to the point that I've refused to
> support it in Nominatim in the past. See
> https://github.com/osm-search/Nominatim/issues/565 for the full
> disucssion.
>
> The problem is that it makes the interpretation of addr:housenumber and
> addr:interpolation dependent on the presence of another tag.
>
> Note that addr:housenumber=40-48 can be a valid housenumber. Example:
> https://www.openstreetmap.org/way/285077586 So to know if the tag needs
> to be interpreted as a single housenumber or as a housenumber range
> you need to check if the node/way has a addr:interpolation tag in addtion
> to the addr:housenumber tag.
>
> Similarly, a way with addr:interpolation needs to be processed in two
> different ways: If a addr:housenumber is present, then assume it's a
> building and parse the addr:housenumber tag to get the range. If no
> housenumber is on the way, assume it is a good old interpolation line
> and look at the housenumbers along the nodes of the way.
>
> I find this kind of double meaning for tagging confusing and error-prone.
> But I might be fighting wind mills here.
>
> Sarah
>
>
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