[Tagging] tagging towers WAS Re: tall masts supported by guywires
reviews at pacific-rim.net
Sat Sep 11 17:33:42 BST 2010
----- Original Message -----
From: "M∡rtin Koppenhoefer" <dieterdreist at gmail.com>
To: "Nathan Edgars II" <neroute2 at gmail.com>
Cc: "Tag discussion, strategy and related tools" <tagging at openstreetmap.org>
Sent: Saturday, September 11, 2010 5:08 PM
Subject: Re: [Tagging] tagging towers WAS Re: tall masts supported by
> 2010/9/11 Nathan Edgars II <neroute2 at gmail.com>:
>> On Sat, Sep 11, 2010 at 11:39 AM, M∡rtin Koppenhoefer
>> <dieterdreist at gmail.com> wrote:
>>> 2010/9/11 Nathan Edgars II <neroute2 at gmail.com>:
>>>> It's a guyed tower.
>>> a tower is "self-supporting", which might be read as contradictory to
>>> guys (unless you consider the guys being part of the tower itself).
>> Then explain the heavy use of "guyed tower" by professionals:
>> You may be using the dictionary definition of tower (though the
>> dictionaries I checked don't rule out guy wires on a tower), but it's
>> apparently not a distinction that's always made in the real world.
> well, probably a "guyed tower" is a such (complete term) and not a
> "tower". A tower can (structurally) usually be regarded a cantilevered
> system, see this schema:
> http://upload.wikimedia.org/wikipedia/de/0/09/Eulerfaelle1.png (the
> first case on the left).
> I'm not really (at this point of the discussion) objecting against
> tagging those (with appropriate subtags) as man_made=tower in OSM, but
> I wanted to raise the awareness that it is structurally not correct.
> We might discuss this and come to the conclusion, that for simplicity
> reasons we might still tag these as tower.
> What do you think about the changes to tower:construction and
> suggested extended subtagging?
My personal opinion is that the man_made=tower tag is getting a bit generic,
in that it seems to be for any man made structure which is tall.
Personally I'd like to see a different top level tag to differentiate
between more solid structural towers such as towers
and what are more commonly thought of as "masts" (though I accept that the
industry definition of these probably are lattice towers, or solid towers)
though I accept that there will be problems in cases such as
where is this a tower, or a mast, according to my definition above?
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