[Tagging] mast / tower / communication_tower (again)

Warin 61sundowner at gmail.com
Fri Oct 5 07:41:24 UTC 2018

On 05/10/18 17:31, Lionel Giard wrote:
> I also support this simplification of definition and tags.
> Is there a possibility to indicate that a tower is specifically a 
> landmark with a tag of some sort without knowing the height (most of 
> them are not publicly known around here) ? Because some are really 
> useful for navigation (visible from a long way) while other are only 
> visible from up close.

I would use the height tag .. and estimate the height.While it will not 
be precise you should be able to convey the difference between two of 
significant height differences. Of course you can place a 
source:height=visual estimation so that others can see where the height 
cam from and fine tune it if they have better data. I have done this for 
various towers, in one case I used the shadows in imagery to obtain the 
estimation from relative lengths of shadows.

> I was personally using the communication_tower tag only to indicate 
> that it is a landmark when it is an especially huge tower (and that 
> was the only difference between a tower and this, to me).
> Le ven. 5 oct. 2018 à 08:42, Graeme Fitzpatrick <graemefitz1 at gmail.com 
> <mailto:graemefitz1 at gmail.com>> a écrit :
>     On Fri, 5 Oct 2018 at 16:17, Joseph Eisenberg
>     <joseph.eisenberg at gmail.com <mailto:joseph.eisenberg at gmail.com>>
>     wrote:
>         Sounds sensible to me. If JOSM and ID support man_made=tower +
>         tower:type=communication with a preset, it won't be any more
>         work than typing in a single tag.
>     Can confirm that it's preset in iD, as I've just mapped one (a
>     mobile phone tower) but don't know about JOSM (or anything else)?
>         Does this require a proposal process? How does something
>         become officially deprecated?
>     Yep, that's the other question!
>     Thanks
>     Graeme
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