[OSM-talk] shop windows on differnt streets

[Martin Koppenhoefer]

sent from a phone

> On 27. Dec 2017, at 18:36, Catonano <catonano at gmail.com> wrote:
> 
> There s this shop that has shop windows on 2 streets
> https://imgur.com/a/icpwJ
> 
> Some of its shop windows have street numbers. as shown here
> https://imgur.com/a/ny08t
> 
> This is  a quite common case, as you can see here
> https://photos.app.goo.gl/Vr2vKuqr1S5hjf772
> 
> Some have their shop windows separated by building entrances or a different shop windows
> 
> How do I map these ?


Having housenumbers for every entrance and potential entrance is extremely common in Italy for example. The usual solution is to add nodes with the street name and housenumber at every such point, plus a node somewhere inside the area for the POI (shop, etc.) with the POI tags and the address they use (e.g. Via Cavour 107, or Via Cavour 103-109, or Via Cavour 103/105/107/109, or even Via Cavour 103;105;107;109). 

If you want to explicitly tell which numbers belong to the POI I think it is better to draw an approximate polygon for the POI (i.e. you can see from the polygon which address nodes belong to it) rather than grouping them by a relation, for several reasons:

- easier to verify visually 
- adds more information (size, shape, topology)
- easier to modify
- easier to understand 
- requires less advanced editing tools
- likely more stable because of the previous points 


cheers,
Martin 


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