[OSM-talk] sac_scale calibration?
vegard
vegard at engen.priv.no
Mon Sep 1 20:15:53 BST 2008
As an aspiring mountain-hiking-OSMer, I've been trying to get the hang
of sac_scale. I know that the typical terrain and what's considered
difficult can vary *a lot* depending, on the typical terrain around.
Here in Bergen, Norway, we have a lot of mountains. Some steep, and some
not-so-steep. But even the ones reachable from the city center can be
demanding enough if you have no mountain-experience whatsoever.
For reference,
http://wiki.openstreetmap.org/index.php/Approved_features/Hiking is the
approved features...
What I find a little difficult, is the border between hiking, mountain_hiking
and demanding_mountain_hiking.
I guess the boundary to the alpine classes are more defined - that's when it
starts to become impossible to get upwards and not fall down unless you also
use your hands, in my book :)
I have a few pictures, unfortunately they turned out a little difficult
to see the steepness of them. Too few references.
But,
http://www.flickr.com/photos/vegard_engen/2810086485/ is taken
downwards. About 3-4 meters to the bottom, so I guess you'd hardly die
if you slid and fell, but you could break a leg. But still, the path is rocky
and you have to be careful, and some people would definitely need to use their
hands for balance - as stated on the page. But there's no ropes etc.
These ones, hiking or mountain-hiking?
http://www.flickr.com/photos/vegard_engen/2810112943/
http://www.flickr.com/photos/vegard_engen/2810929816/
http://www.flickr.com/photos/vegard_engen/2810080401/
http://www.flickr.com/photos/vegard_engen/2810114907/
And would people tag only the difficult stretches as the most difficult
classification, or would it be ok to do whole stretches (i.e. between
destinations/junctions of paths) as single classification.
I guess that a lot of this *is* actually up to me, but I'm a strong
supporter of actually agreeing on this as long as we are actually
editing the same map, sort of :)
All input and opinions (and the rest in the series:
http://www.flickr.com/photos/vegard_engen/tags/osm/) is welcome :)
--
- Vegard Engen, member of the first RFC1149 implementation team.
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