def: can have conditions:
“def:highway=footway[walking_track=yes];access:bicycle”=no (I’m not proposing this particular tagging scheme, this is just an example) So if there is any tag on your walking track footways, or paths, or whatever that can be used to distinguish them, you could use that as a condition for the default value. The issue with this is that we are now quickly moving into territory where it would be essential that these def tags are read and interpreted by data consumes for the data to make any sense… so that would be a problem. It’s a difficult balancing act between “don’t tag local law” and “this is exactly the explicitly specified access for this way, even if it’s derived from local law instead of any physical signs or barriers”. From: Graeme Fitzpatrick <graemefi...@gmail.com> Sent: Friday, 4 February 2022 09:06 To: osm.talk...@thorsten.engler.id.au Cc: OSM-Au <talk-au@openstreetmap.org> Subject: Re: [talk-au] Path versus Footway On Thu, 3 Feb 2022 at 19:32, <osm.talk...@thorsten.engler.id.au <mailto:osm.talk...@thorsten.engler.id.au> > wrote: I assume these National parks where different rules are in effect have a boundary relation. In which case it would be possible to either: a) tag a def: directly on that boundary relation with the rules that apply or (maybe better in this case) b) create a type=defaults relation “Tasmania National Parks Defaults” with all the defaults that apply in national parks, then add that relation to any national park boundary relation where it applies as member with the role of defaults (b) is basically following the defaults proposal exactly, and allows to define the defaults once and the re-use them for all national parks. A problem with that would be that in a number of cases that I know of, you can ride a bike along the roads into the National Park, but you can't then take your bike onto the walking tracks, so a Park-wide default may not work? Thanks Graeme
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