[OSM-talk] Could I globally replace [building:level] with [building:levels] ?

[Andy Townsend]

On 17/05/2022 15:27, Simon Poole wrote:
>
> Obviously common sense should be applied, but as you correctly note 
> changing 10k objects globally is touchy, particularly when there is no 
> clear root cause. So as a first step I would try to determine if there 
> is a reason for the mistagging and if yes fix that first, it might be 
> as simple as a typo in a preset. 

To get an idea of the source of the problem it's possible to just select 
one value from

https://taginfo.openstreetmap.org/keys/building%3Alevel#values

and sample the results.  Taking "4" as an example,

  * The originating editor seems to be either iD or JOSM (probably more
    iD than JOSM, but I presume more buildings are added with iD than JOSM)
  * The originating date is a fairly wide range.  Some are 10 years old,
    some recent.
  * There are more errors where English isn't a first language

There is a "long tail" of silly values (the previously mentioned "-1" on 
page 1, and also others starting on page 2 of 
https://taginfo.openstreetmap.org/keys/building%3Alevel#values ) that 
need looking at in more detail.

It's pretty clear what 
https://www.openstreetmap.org/node/2517761586/history is trying to say 
with "building:level" and it's not "this building has -1 levels".

I'm sure that it would be possible to do a sensible mechanical edit here 
that fixed https://www.openstreetmap.org/way/160054444 but left some of 
the others, but it wouldn't just be "change all key X to key Y" worldwide.

Best Regards,

Andy



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