On Sat, Aug 15, 2009 at 11:38 PM, Martin Koppenhoefer<[email protected]> wrote: > >>> Bicycle=signed is IMHO not the best idea, because what do you do for >>> official or designated _and_ signed ways? >> >> As I mentioned before, you would have to change the syntax to >> something more like bicycle:designated=* and bicycle:official=*, >> bicycle:signed=*, etc. Alternatively, change the tag definitions so >> that the issue doesn't occur, or make one imply the other(s) - e.g. >> signed implies official implies designated (we do already have >> "'official' is stronger than 'designated'", so the latter is more or >> less already true). > > doesn't this break the key-left-value-right-scheme? (Maybe not an > issue as this is done for other tags as well). What would the values > be? "yes" and "no"? Or could it be bicycle:official=signed? > bicycle:official=permissive for the case of customary law?
Well yes, bicycle should be on the right, and yes, values of "yes" and "no". If you want bicycle on the right, I would propose using: access:designated:vehicle=bicycle;yes/no, access:official:vehicle=bicycle;yes/no, etc. This scheme would be quite extensible (e.g. access:maxspeed:weather=wet;40). >>> Also I didn't get the difference of designated and official. Maybe you >>> can explain? I thought it was intended for the same situation. >> >> Please see the wiki. > > actually for designated you don't get a stable consensus on the > meaning, the page changes from time to time the meaning so the meaning > might be different according to when the mapper last looked it up in > the wiki. Yeah...contradiction within the wiki is something that needs to be fixed. >> Eventually I gathered that official is what you >> think it means, whereas designated is more of a "recommendation" as in >> "this way is designed for *". The wiki definition makes only vague >> references to "signs", but then the examples all heavily reference >> signage. This IMHO is confusing. > > this is due to the change in meaning. An older Version stated: "This > tag indicates that a route has been specially designated (typically by > a government) for use by a particular mode (or modes) of transport. > The specific meaning varies according to jurisdiction. It may imply > extra usage rights for the given mode of transport, or may be just a > suggested route." > > "specially designated" I'd interpret stronger than "recommendation". Maybe, but not much: e.g. "may be just a suggested route". The fact that 'official' was introduced implies that designated is less than 'official', which I am not so sure reflects its usage. _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
