[Talk-us] Nominatim in CDP

[Clifford Snow]

On Mon, Jun 23, 2014 at 12:44 PM, Toby Murray <toby.murray at gmail.com> wrote:

> I have nothing to add to the CDP discussion but that is not your problem
> here. I looked at this after my own address import. This is definitely a
> Nominatim issue. What happens is that Nominatim associates address points
> with roads. In order to reduce duplication, some information is associated
> with roads instead of on the individual address points themselves. This
> includes addr:city which is assigned to roads based on containment within
> an administrative boundary, not based on any addr:city tags on address
> nodes.
>
> You could fix this by adding an addr:city tag to the road that these
> addresses belong to. This overrides any admin boundary containment. However
> this seems like a case of "tagging for the geocoder" and I think Nominatim
> needs to be changed to make this problem better. Like, if all addresses
> being associated with a given road have the same addr:city tag on them then
> it should carry that over to the road and override anything Nominatim comes
> up with on its own.
>
> As an example I did add an addr:city tag to one road:
> https://www.openstreetmap.org/way/13226787
>
> Notice that if you search for an address along Cottonwood Circle with
> Manhattan in the search (ex: 3700 Cottonwood Circle, Manhattan, KS) it
> finds it. But if you search for an address on the neighboring road (ex:
> 6001 Stony Brook Drive, Manhattan, KS)  it finds nothing until you remove
> the Manhattan at which point it finds the address but reports it to be
> simply in Riley County.
>

I'll report a bug to Nominatim since I started this.

Putting addr:city on a highway doesn't seem right. Especially if the road
isn't in the city boundary although less tagging than adding a city tag to
each address node.

Clifford


-- 
@osm_seattle
osm_seattle.snowandsnow.us
OpenStreetMap: Maps with a human touch
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstreetmap.org/pipermail/talk-us/attachments/20140623/0c5f88ad/attachment.html>