> 1. Mineshaft may exist but we are going to be mapping > the location mine entrances, not the tunnel leading away from > the mineentrance. In the future someone may want to map the 'way' > that the mineshaft follows especially if its a horizontal tunnel going > into a hillside > 2. What we want to locate, or map, are mine entrances. Mine entrances to > are mostly small and most go horizontally into hillsides. > http://upload.wikimedia.org/wikipedia/commons/3/35/Mine_entrance.jpg > I assume most are too small to map as an area in OSM. They would have > to be mapped as a node.
I think you are mixing up audits and mineshafts. Mineshafts always go verticaly or almost-verticaly into the ground. You are talking about adits, that is something completly different and should be dealed with in another proposal. See Wikipedia for definitions of these terms. > 3. There are plans to supply info on structures associated with mines > as part of the tag, notably the Pit Head. I think this could be confusing > and people would map the outline of the Pit Head structure and tag it as > a 'mineshaft'. The Pit Head should be mapped separately as a building and > this should be made clear. I am not sure what you mean here. The pit head is always above the mineshaft, so it makes no sense to map the mineshaft and the pithead seperatly. >4. The term Headframe is used to describe a Pit Head, which is confusing. > More problems with language use. Pit Head appears to be the correct term > for the building or structure. Headframe is the more correct term. A headframe is the structural frame above an underground mine shaft (see Wikipedia). Usually winding shafts have such a headframe, air shafts do not. A pit head could also be a building with an enclosed headframe. But the intention of this tag is to express if the headframe is visible, because it is a prominent point of reference. Look at the examples in the wiki. lesi _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
