On Sun, Feb 15, 2015 at 11:56 AM, Mihkel Rämmel <r...@hot.ee> wrote:
> Does anyone have objections to adding a second picture of mobile mast > to man_made=mast on wiki and clarifying that masts can be higher than > 'only a few meters'. > > http://wiki.openstreetmap.org/wiki/File:Mobile_communications_mast.JPG > The wiki mast vs tower definition appears wrong to me and wikipedia. I've been taught that a mast is usually not self supporting, ie. has guy wires while a tower is self supporting. Wikipedia [1] states " However, in structural engineering terms, a tower is a self-supporting or cantilevered <http://en.wikipedia.org/wiki/Cantilever> structure, while a mast <http://en.wikipedia.org/wiki/Guyed_mast> is held up by stays or guys <http://en.wikipedia.org/wiki/Guy-wire>." While the OSM wiki states "A man made mast is a small tower of only a few meters. It is often built from concrete or steel and only for a single application like a mobile phone base station. A tower is accessible and provides platforms, whereas a mast only offers ladder steps to climb it." I think the wiki need changing, along with your new image, which is clearly a mast. Clifford [1] http://en.wikipedia.org/wiki/Radio_masts_and_towers [2] http://wiki.openstreetmap.org/wiki/Tag:man_made%3Dmast -- @osm_seattle osm_seattle.snowandsnow.us OpenStreetMap: Maps with a human touch
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