[Tagging] highway=footway - Advanced definition: Distinction footway vs path
ilpo.jarvinen at helsinki.fi
Fri Aug 28 21:02:51 UTC 2015
On Fri, 28 Aug 2015, Warin wrote:
> On 28/08/2015 9:47 AM, Martin Koppenhoefer wrote:
> > My suggestion is to not assume any access defaults but rather
> > explicitly tag everything, and surface as well. Everything you assume
> > will be questioned and taken from you in a few years ;-) what is there
> > explicitly will likely remain...
> Unless highway=trail can be made exclusive of any other tag (including their
> sub tags) then it will only add to confusion and abuse of its use.
> As 'footway' can be sub tagged to any thing I can conceive of at a 'trail' I
> see little hope of this occurring.
For those who would want to have a separate tag for 'trails', it's
exclusive but obviously those who would want to tag everything with
highway=path+subtags will disagree :-).
I see there are three main sides in this, those who would want...
1. ...highway=path == highway=footway
2. ...highway=path only
3. ...to have additional highway=trail (or similar value) that is
distinct from path/footway
For those in group 1 adding =trail shouldn't matter very much, it's just
another value and as they usually talk about "using the other tags", the
actual value of highway=* shouldn't even matter that much to them
(unless they would want to do some defaults but most of people who
advocate for this seem to also dislike defaults).
I suspect that for those in the group 3. it would be agreeable that
highway=path == highway=footway if a real trail/path highway value
exists. So instead of "confusion and abuse", I see that a bit more
convincing consensus might be possible with it than the current lack
The only real downside from introducing highway=trail for real that
I can think of is that (some) data users might need to support that
new value, some of the people in the group 2 might be affected (and
perhaps in the group 1 too). But then they really need to care about
the highway=* value in the first place for it to be meaningful for
them! I know some people seem to unfortunately play with two cards
with this: on the other hard they say that subtags are the ones that
matter but then they oppose hard adding a particular main tag value,
which makes no sense to me.
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