sanderd17 at gmail.com
Wed Jun 15 15:37:57 BST 2011
If you want an absolute "safety" value, then you need some numbers like "the
number of accidents that happened between 2000 and now on that road". It
seems that Ethias (an insurance company) uses that data in an iPhone app (I
don't have an iPhone, so I can't try it). If you use google translate (or
any other service), you can read the short article:
So there are objective ways of tagging, but we just can't achieve that
without help from the government.
On the other hand, I have nothing against subjective tags, if the data user
knows they are subjective and the mappers want to put it on the map, than
everything is ok.
2011/6/15 Pieren <pieren3 at gmail.com>
> A scale is not necessarily subjective if it is well defined. The key
> "sac_scale" is a good example. "tracktype" would probably require a better
> description but it is, imho, less subjective than the "smoothness" values.
> Coming back to the OP, a dangerousness scale for bikers has been many times
> discussed in my country. The problem is that even outside OSM itself, there
> is no real standard and many local initiatives (at municipalities level) do
> not have a common agreement about such scale. But it is clear for me that
> access=avoid is a mistake and should be replaced by the legal access value.
> If it is not clear in the wiki doc, then improve the wiki doc.
> Tagging mailing list
> Tagging at openstreetmap.org
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