[OSM-talk] Tagging climbing routes and scrambles

[Robin Paulson]

2008/4/18 Steve Hill <steve at nexusuk.org>:
> > structure=pole
> > highway=bus_stop
> > amenity=post_box
> >
>
>  Ok, but you still have a potential conflict here.  Hypothetically, you
> could have a "timetable" tag which applies to both a bus stop (tells you
> when busses arrive) and a post box (when is the post collected?).  A neat
> solution is to have "bus_stop:timetable" and "post_box:timetable".

sorry, i should have made that clearer. i would do this as 3 separate
items, maybe as a relation (slight overkill, but anyway). the relation
would contain 3 nodes, one for the pole, one for the bus stop and one
for the post box. thus each can have it's own timetable without any
confusion. i would never tag one point (or way) as two separate items,
that's asking for trouble, even if the tags don't clash

technically this is wrong (not all 3 nodes can easily share the same
point and still be editable), but i don't see a huge problem in 2 of
them being slightly offset

>
>
>
> > a lot of the disputes over tagging are caused by people confusing
> > physical items with conceptual ones; if we thought about separating
> > them before debating a tagging scheme, things would be a lot clearer
> >
>
>  That may be, but I still think in some cases you are going to want multiple
> conceptual items attached to a single item - namespacing allows this to be
> done without risk of conflicting tags and makes it more obvious how the tags
> interact with each item (conceptual or physical).
>
>  The same thing _could_ be done with relations (i.e. you mark up the
> physical items with ways and nodes and use relations containing physical
> items to represent the conceptial things).  But at the moment that would be
> even more complex than a clear set of namespaces.
>
>
>
>   - Steve
>    xmpp:steve at nexusuk.org   sip:steve at nexusuk.org   http://www.nexusuk.org/
>
>      Servatis a periculum, servatis a maleficum - Whisper, Evanescence
>
>