I don't see where you're getting the "interstate references shouldn't go in the destination tag" bit...can you quote the sentence/paragraph on that? I agree that it seems wrong, for the same reason you listed.
The ref= tag is used for the highway number on the actual highway itself. E.g., I-95 should have a "ref=I 95" on the highway=motorway. The ref=tag is used on freeway exits to indicate the exit number on the junction node (where the exit ramp diverges from the freeway). I put whatever is on the sign in the destination= tag, even if it's an Interstate number. Abbreviating Interstate as just "I" does seem to go against the OSM rule of not using abbreviations. :-) I suspect that it started that way (abbreviated) because in Europe they have highway naming systems that just have a letter that has no meaning (that is, not an abbreviation), so they just figured the same thing applied to the U.S. and we just used the letter I for our major freeways instead of the letter A like most of them do. Although I've been just using the letter I, I would say that Interstates should be spelled out to conform to the no-abbreviation rule. As for north/south, same thing: spell them out. And I don't use the dash, and put a blank, as you describe. I think your examples are correct for your signs. --jack On Tue, Mar 3, 2015 at 10:28 AM, Harald Kliems <kli...@gmail.com> wrote: > I recently captured Mapillary imagery along I-90W between Madison and > Wisconsin Dells with the aim of adding destination tags to exits. The > example section of the documentation in the wiki [1] only has German signs, > which is not that useful. I'm wondering how people handle the highway > destinations commonly found on signs. For a somewhat complex example, take > this sign: > > http://mapillary.com/map/im/lE5ZLUjfn-gTLB51nnh9fg > > (Not that for some reason the Mapillary has an offset for the location of > the images; the actual location of the sign is about here: > > > http://www.openstreetmap.org/?mlat=43.10188&mlon=-89.28977#map=18/43.10188/-89.28977 > ) > > So for the left part of the highway I tagged > destination:lanes=I 39 North;I 90 West; I 94 West;Wisconsin Dells|I 94 > East;Milwaukee > > For the off-ramp: destination=I 39 South;I 90 East;Janesville;Chicago > > Questions: > - the wiki page seems to imply that the various interstate references > shouldn't go into the destination tag. That seems wrong to me, as I'd > expect a router to include them ("Take the exit towards I 39 South, ...") > and don't see where else they would reasonably go. The wiki (first example) > says "Additionally it is possible to set ref=A 2 on the highway=motorway." > -- not sure what that means. > - The ever-recurring abbreviation question: Do I write out "Interstate" or > not? Abbreviate north/south...? I have the suspicion in some cases that > would lead to exceeding the 255 char limit. If using an abbreviation, we > don't use a dash between I and the number, and a blank between the number > and direction, right? > > Thanks for your input. In case there is consensus (one can dream!), I'm > happy to update the wiki with some more US-specific examples. > > Harald. > > _______________________________________________ > Talk-us mailing list > Talk-us@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-us > >
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