[Tagging] building=yes for multiple building

Ralph Aytoun ralph.aytoun at ntlworld.com
Thu Mar 17 09:24:53 UTC 2016

Hi all,

I notice the same trend happening with nearly all discussions. 

Instead of being able to consistently look at and discuss these key features as a world-wide general term the discussion tends to become mired in precise local situations.

The discussion was originally about the key ‘building’ which is a general term used to indicate a structure of some kind (this would be the broadest definition which would be acceptable in nearly every part of the world).

The value would be what defines the more precise description of that structure (e.g. Single household, multiple use, shed, garage, etc.)

With armchair mapping it may not always be possible to identify the extent of single buildings (as in an informal slum area, or a complex high rise city centre where the imagery is oblique).

It is preferable in this situation to allow the indication that there are structures there that need more detailed sorting and am in agreement with Blake about the possibility of adding a tag building=multiple which should flag up in any validation process as needing attention (as highway=road does). I also agree that this should be only used as a last resort and sparingly.

At the moment I see mappers leaving blank spaces because they cannot identify individual buildings, either because of the complexity of the area or because the imagery is not sharp enough. This approach will allow them to indicate that there are structures there but need more attention.

From: Martin Koppenhoefer 
Sent: Thursday, March 17, 2016 8:55 AM
To: Tag discussion, strategy and related tools 
Subject: Re: [Tagging] building=yes for multiple building

2016-03-17 1:04 GMT+01:00 Clifford Snow <clifford at snowandsnow.us>:

  I used to work in the telecom field. We often did lateral additions to the building. Many times different entrances would have different addresses.

yes, multiple addresses on the same building do occur, at least in some regions. I am aware of Germany and Italy where it both happens (in Italy it is the standard). Assigning addresses to a building can make sense in some cases (areas), but it definitely doesn't (always) in others.



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