[OSM-talk] addr:interpolation and data consumers

[Andreas Vilén]

It's not always that easy. "3D housenumbering" has no clear tagging rules and sometimes it's hard or illegal to get close enough to see which number is used for which building/entrance. In other situations the mailboxes are not located where the houses are and the houses have no addresses on them, making it hard to know which mailbox belongs to which building.

 Interpolating when you know start and finish is more honest than guessing.

/Andreas

Skickat från min iPhone

> 20 nov. 2016 kl. 17:47 skrev nebulon42 <nebulon42 at mailbox.org>:
> 
> Hi,
> 
> I have written an address QA script for Austrian addresses. Now I'm
> asked to support addr:interpolation. While the script is specific to
> Austria the more general problem of addr:interpolation is not.
> 
> In my opinion addr:interpolation is of little value for data consumers.
> Personally, I prefer addresses on nodes or buildings where the location
> of the address is clear. addr:interpolation rather leaves this open. I
> know that addr:interpolation is an established tag, but the Wiki also says:
> 
> "As long as we don't have a node or building outline for each
> house(number) along a way, it's also possible to use automatic number
> interpolation."
> (https://wiki.openstreetmap.org/wiki/Addresses#Using_interpolation)
> 
> For me that sounds like: use it until there is something better/more
> accurate. I tend to replace addr:interpolation with addresses on nodes
> or buildings when I see them and more accurate data is available.
> 
> What is the opinion on addr:interpolation here?
> 
> For reference: https://github.com/gmgeo/at-address-compare/pull/1
> 
> (not on tagging to reach a more diverse audience)
> 
> nebulon42
> 
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