First of all, what Mateusz is proposing as the "name" of the route is properly referred to as the "headsign". And the notion that because Mateusz thinks the "description" tag is a better fit than the "name" tag is all well and good, and merits discussion, but it doesn't mean he's right (or wrong).
Bus routes are complicated enough to tag and render without overturning well-established practice for no reason. I have mapped hundreds of bus routes in two countries (and help maintain more than 1,300). This discussion should properly have begun on one of the specialized transit discussion lists, where people with experience can offer insight, rather than a general tagging discussion. Tagging a bus route is not the same as tagging a hiking route, nor a mountain range, nor a stand of trees. For more information on the main standard in this area, see https://gtfs.org/best-practices/ Several different variants (each mapped as a separate route in PTv2) can share the same headsign. Moving the "name" tag (well established) to the "description" tag (vague and unused) serves no purpose, to my mind. Replacing it with the less specific (though useful) headsign seems counterproductive to me. And the headsign is often NOT the "name" of the bus (in the sense of the name used for marketing purposes by the bus company). For example, "TUVIM" is the full name of a bus line near where I live. Not very helpful to have name=TUVIM for the tag. There are several different variants, each with a helpful (descriptive) name: Bus TUVIM Épinettes : Horace Vernet - Mairie ↔ Mairie d'Issy-Métro Bus TUVIM Centre-Ville : Horace Vernet - Mairie ↔ Mairie d'Issy-Métro Bus TUVIM Île Saint-Germain : Horace Vernet - Mairie ↔ Mairie d'Issy-Métro Note that the first two would have the same headsign, though they are different routes. The larger question is, what is a "name" in OSM? The wiki says to use those "typically signposted". A bus has several signposts: -- the headsign on the bus itself (which Mateusz apparently proposes as the name) -- the signs inside the bus (which usually conform closely to the existing name) -- the signs on the brochures inside the bus and available from the bus operator (also tracking the existing name) -- the signs at various stops along the route (can be headsign or existing name or both) There are also signs in the form of advertising used by the bus operator. All these may have different variations. The community has agreed in PTv2 to a standardized "name" out of these myriad possibilities. All names are descriptions of one sort or another. Not all descriptions are names. I might describe Bus 26 near me as "the bus from Gambetta to Nation" or "the bus from Gambetta to Gare Saint-Lazare". But "Gambetta" isn't on the headsign! Why? Because Gambetta is my stop; in fact when I say "the bus from Gambetta" I am describing two variants on one route. That would be a possibly appropriate description. Not a name. Others might say "the 26" or "the orange line". Those are also names. There are many possible names for a bus line. The one that we have agreed on is a valid name. It can also, I suppose, be considered a description, though quite a rigid one, because as has already been noted, the description tag is more free-form. I go by the rule "if it ain't broke, don't fix it." What is "broken" by the existing setup? And in particular, what is "broken" that adding a "headsign=*" tag wouldn't fix? John On Sun, May 12, 2019 at 12:36 AM Paul Allen <pla16...@gmail.com> wrote: > On Sat, 11 May 2019 at 23:19, Jo <winfi...@gmail.com> wrote: > >> >> For the people proposing t use what is on the 'film' on the front of the >> bus: there are itineraries where this text changes midway, so that's >> definitely not the name fo that specific itinerary either. >> > > A to B via C and D. > > -- > Paul > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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