Hi,
thank you for the comments!
> because it gets complicated if you have several
> values in several keys and you wanted to connect
> them between each other (you would have to rely on ordering)
on a technical view, semicolons are seperators and you can jump from one
to the next, get orders and catch/interpret the strings between. But I
don´t like that too if it ends up in long text.
> there is the third option ... * whc:ref=N ...
I like this too and I use it.
> ... (I guess this is not welcome because it puts
> the value in the key ;-) ) ...
but in this case, it might be accepted?
I would suggest to use it like this
* WHC:operator=World Heritage Convention (WHC)
* WHC:website=http://whc.unesco.org/en/list
* WHC:ref=N
* WHC:criteria=2;4
* WHC:inscription_date=1983
in the operator-key value you have to give the full string (advertise)
and with this "abbr" on the begin, you see in a tag-list what belongs
together. Together with the "abbr", its possible to use more "ref" for
one object.
Thats a _relation-concept_: "ref"-layers upon one basic OSM-area
decoration e.g. out of leisure=*, landuse=*, ...
These ref-abbr-scheme is IMHO usable for lots of (external) stuff, from
CORINE up to plant communities. But you should have a view on the
accurate abbr.
> ... military is IMHO not related to these protection zones.
yes, its a marginal cases: the aera is constrained usable too - its for
your healthfulness ...
> ... water protection, air protection, protection of specific
> species or kinds of animals (e.g. birds).
therfor is the "resources-protected-areas"-section - the economic view
of environment-objects
http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dprotected_area#resources-protected-area
her you protect areas to save a location, to find gold, getting food,
water, ...
and if you think about protect species with their habitats
protect_class=7 "nature-feature area: similar to 4. but without
IUCN-level."
http://wiki.openstreetmap.org/wiki/Tag:boundary%3Dprotected_area#nature-protected-area
Thats more the local, small-areaed protect efforts by _communities_:
saving an aerie of an eagle or the orchids etc.
> ... low emission zones.
its too, like military, a runing key. For the sake of completeness.
Actually they belong to p_a too. I still don´t know, if these
LEZ-concepts are the same way complex than the tarif-zones of the public
transport.
regards, crom
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