On 15/04/2016 08:24, Oleksiy Muzalyev wrote:
Google search of "radio mast", "radio tower", "television mast",
"television tower", etc. gives each millions of results with similar
images. It seems that the words "mast" and "tower" are
interchangeable. The article in English Wikipedia is called: "Radio
masts and towers": https://en.wikipedia.org/wiki/Radio_masts_and_towers
At the risk of stating the bleeding obvious, the English* word "mast"
(as in "radio mast") is an adaptation of "mast" as in "the big pointy
thing on ships that you hang the sails off". It's recent - there have
only been radio masts for 100 years or so.
There is a sense (noted from an engineering point of view in your
https://en.wikipedia.org/wiki/Radio_masts_and_towers) that a "mast" is
not self-supporting but that a "tower" is, but there's certainly popular
crossover usage of the two terms - see for example
https://en.wikipedia.org/wiki/Emley_Moor_transmitting_station. I drive
past that every week, and if asked what it was called would probably say
"Emley Moor mast" but if asked whether it was a mast or a tower would
probably say "tower". Also a ship's mast is usually self-supporting.
Also, please don't say things like "... and it is not rendered on the
OSM map at all". What you mean is "not rendered on one of the layers on
the osm.org site, which is widely used by OSM mappers but hardly at all
by anyone else". Most people see OSM data either in an app on their
phone, on a third-party website for e.g. a pizza company, or on a board
outside the supermarket saying where other local facilities are. None
of these show what you call "the OSM map".
It'd be nice if OSM could decide what the difference between a mast, a
tower and a communications tower was and start mapping accordingly. The
nearest thing to a sane discussion on this was on the OSM Carto map
style's github rather than somewhere like the tagging list;
http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dmast#First_question:_Is_it_a_mast_or_a_tower.3F
is positively unhelpful. However it's not the end of the world - if
people map "big pointy thing" using one of any number of OSM tags then
most maps using OSM data are free to display "big pointy thing" any way
they like, if they feel it's appropriate.
Cheers,
Andy
* I'm using British (actually English) English throughout here. Other
variants are available.
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