Le vendredi 09 mars 2012 à 20:15 -0500, Greg Troxel a écrit : > Pieren <pier...@gmail.com> writes: > > > tourism=information > > information=trail_blaze > > hiking=yes > > operator= > > support=tree|pole|rock > > description= > > That seems reasonable. But, there are various kinds of markers for > trails I have encountered, and some of them would not necessarily be > called blazes. I've seen: > > painted rectangles on trees > plastic triangles nailed to trees > 1.5"x3"x0.75" painted blocks nailed to trees > (all of these qualify as blaze) > > and > > piles of rocks, where there are no trees ("cairns") > > > I'm not sure if cairns count as blazes in hiking parlance.
As a hiker, I see a difference between cairns and blazes but they are similar. In particular, the purpose is the same: help hikers to find their way. Wikipedia mentions cairns in this page: http://en.wikipedia.org/wiki/Trail_blazing > But it seems > fair enough to call them that, and it makes sense to have > > trail_blaze=paint > trail_blaze=plastic > trail_blaze=wood > trail_blaze=cairn Note that cairns could also be tagged as landmark=cairn (although this key seems rarely used). > trail_blaze_shape=triangle > trail_blaze_colour=yellow Alternatively, the colour/symbol and osmc:symbol keys could be used for that. > This feels like overkill, but I have been putting 'name=yellow' on > trails that have yellow blazes and no name, because it's useful (even if > a bit off) and because people call that "the yellow trail". > So I would expect you to have two nodes (next to each other) when there > are two blazes. > > I would expect the purpose can be > > blaze inventory by the trail maintenance group > > producing a map with the trail's colors labeled and also showing > little marks for the blazes. Regards -- Gilles Bassière - Web/GIS software engineer http://gbassiere.free.fr/ _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging