On Sat, 22 Aug 2009 21:33:27 +0200 (CEST), Christiaan Welvaart <[email protected]> wrote: > hi, > > I changed some things on http://wiki.openstreetmap.org/wiki/Key:access - > only to document current (best) practices. > > > * Transportation modes > > (Note that > *=agricultural is not necessarily defined by this hierarchy, only tags > like agricultural=no.) > Not all tags in access need everey value, in many cases when specifying, yes/no/dedicated cover more than enough. Only the general access need this variety of values. BTW I know of cases which could be tagged access=private + agriculture=yes + forestry=yes. Even more appropriate is hgv=no + agriculture=yes, since many of these agricultural vehicles can have a max weight far above 3.5 tonnes, I have myself maneuvered almost 10 tonnes (tractor of 2 tonnes + cargo trailer of 0.5 tonnes + 5+ tonnes of cargo). Some roads accessing farmland are actually signed with hgv=no. > > Separated land (road), water, and rail based transportation because they > can be treated separately(?). > I do not know enough about rail transport, but having only one subkey makes it abit superflous. For additional keys for water transport, see my point on the talk page. boat= should be a master key of motorboat= and sailboat=, and add fishing_vessel= and ship= as master keys as well, all other values suggested on the talk page are written hierchally under ship=
Yes, there is a big point in separating boats and ships, just as separating mopeds and hgv. > > * Direction specific restrictions > IMO this does not belong on access, but rather on oneway= as they are dictating special condition of the oneway key. > > * Evaluating access tags > There is a list of national specific defaults of the access keys to highway=, I do not remember where it was now, but think the page is linked under 'See Also' > > Christiaan > > _______________________________________________ > talk mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/talk -- Brgds Aun Johnsen via Webmail _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
