Am 24.05.2011 20:49, schrieb Richard Fairhurst: > Ben Robbins wrote: >> All we need is a phisical list, and an access list. > > Um, we have that already. > > For physical tags, we have: > highway=footway, or > highway=cycleway, or > highway=bridleway, or > highway=track > > See http://wiki.openstreetmap.org/wiki/Duck_tagging. "If it quacks like a > duck, looks like a duck, and walks like a duck, call it a duck." If you want > to refine this further, there are other physical tags you can use, such as > surface=. > > For access, we have, and always have had, "access tags" for particular > users. Such as: > foot=yes > horse=no > bicycle=permissive > > One of the keenest principles in OSM (and one which tag proponents would do > well to remember now and then) is that "we optimise for ease of mapping". > Mappers are scarce resources. > > So tagging systems should not impose an extra burden on the mapper, which > means that there are long-established shortcuts that mappers can take. One > of those is that if it both quacks like a footway (physical) and has access > rights consistent with footways (access), you can infer one from the other. > So a rural public footpath in the UK would typically be tagged: > highway=footway (physical, implies foot access) > > But if it had additional permissions you could add > highway=footway (physical, implies foot access) > bicycle=permissive (access) > > If it was only available because of the generosity of some owner or other, > you could add > highway=footway (physical, implies foot access) > foot=permissive (overrides the above) > > If it was a bit bigger physically, you might want to change it to: > highway=track > foot=yes > bicycle=no > horse=no > > There are other tags you can add to "ice the cake". surface= is the obvious > physical one. In the UK, we like the 'designation' tag, which adds the legal > icing to this particular cake, and which you can infer access values from. > And so on. > > I know you've been away for a while, Ben, but it would help if you actually > read some of what's happened since then. In the UK we are all happily > mapping as per above and we really don't need someone who hasn't kept up > (that's fine, we all have busy lives) to blunder in without checking and say > "YOU'RE DOING IT WRONG". One other thing that has changed is that we now > have a tagging list, and even if you won't take this to talk-gb (which you > should), you should take it to tagging.
I wonder that noone, so far, mentioned that we had similar discussions on talk-de. Please, do not discuss only in GB. The sitiuation is even a bit more complicated because of law (especially for bikes) and we have foot/bicycle=official, too. I stoped using footway or cycleway at all. And do not forget emergencies which could use a track but not a path. Thanks colliar _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
