I don't think 'circular' is the best word... implies round .. and at least some are not round.
continuous_route?
looped_route?


On 28/05/18 18:24, Peter Elderson wrote:
I think for waymarked circular trails the UK English meaning is not too far off. The waymarks and often available map/leaflet/booklet/description do indeed bring you back to the starting point. (Remember the walking_bus discussion?)

Having said that, I think circular_route is more to-the-point, it targets the route itself instead of the service. I have asked the Dutch community for input on retagging roundtrip=yes (for foot/hiking/cycling routes) to circular_route=yes, and using closed_loop=yes for the purpose of validation.

2018-05-28 10:01 GMT+02:00 Jo <winfi...@gmail.com <mailto:winfi...@gmail.com>>:

    I only saw the discussion in this thread, came to the conclusion I
    (and probably many other Dutch and German speakers) had
    interpreted the meaning completely wrong.

    The tag is indeed meaningless, as it stands. Especially for public
    transport, where it really doesn't matter. We're describing
    itineraries. For hiking/cycling it's a misnomer. So it would be
    good to phase it out.

    What I'm trying to accomplish, while we're doing that is to not
    only replace it with circular_route, to indicate intent, but to
    also add a tag that validators can use to perform validation.

    Jo

    2018-05-28 9:54 GMT+02:00 Volker Schmidt <vosc...@gmail.com
    <mailto:vosc...@gmail.com>>:

        Have you seen the discussion on the roundtrip tag [1]?
        It looks as if there are two different roundtrip concepts in use:
        For hiking or cycling routes it means that the route you
        follow brings you back to the starting point with the outwards
        route and the return route (mostly) different.
        in a traffic service round trip is often used to indicate a
        service "there and back"
        "roundtrip=yes|no" is an unfortunate choice of key as it has
        wo meanings, mainly ccording to which side of the Atlantic
        Ocean you are. but its in use about 25k times.
        It might have been better to have something like "loop=yes|no"
        for hiking and cycling routes.
        For bus|underground|tram lines it might have been better to
        use something like "geometry=linear|circular|..." for
        transportation routes.

        [1] https://wiki.openstreetmap.org/wiki/Talk:Key:roundtrip
        <https://wiki.openstreetmap.org/wiki/Talk:Key:roundtrip>

        On 28 May 2018 at 08:52, Jo <winfi...@gmail.com
        <mailto:winfi...@gmail.com>> wrote:

            From what I gathered during this discussion, roundtrip is
            mostly understood and used wrongly by mappers.

            It's also not something about the route, but rather about
            a passenger who buys a ticket to come back the same way
            the same day/weekend and paying the return fare on the
            same ticket (aller/retour - heen- en terug).

            So I went and downloaded all objects tagged with
            roundtrip. The one I changed needed major clean up in its
            members anyway.

            So how do we get from a meaningless tag (roundtrip) to
            something that actually has meaning for itineraries?

            I think that on the one hand we need a tag to describe
            what the user can expect (get back to approximate initial
            position) and on the other hand it would be nice (for
            validation purposes) to know if the ways in the relation
            are supposed to form a closed loop.

            hence:
            circular_route=yes
            closed_loop=no

            for that particular bus route.

            Polyglot

            2018-05-28 7:47 GMT+02:00
            <osm.tagg...@thorsten.engler.id.au
            <mailto:osm.tagg...@thorsten.engler.id.au>>:

                The real question, which as far as I can tell you
                haven’t answered, is: Does that same vehicle, after
                completing its route, start at the beginning of the
                same route again?

                Based on your description, the route as mapped is
                A1->B->C->D->E->A2.

                Can I get on at E, stay on the vehicle, and get off at
                B? (In which case I would expect that after finishing
                at A2, the vehicle goes to A1, and you can remain on
                board during that time. A2 may be (but doesn’t have
                to) an “exit only” and A1 and “entry only” stop).

                If yes, then it is roundtrip=yes. And you shouldn’t
                just remove an existing tag that actually applies.

                If no, then the roundtrip=yes is wrong and should be
                removed.

                *From:*Jo <winfi...@gmail.com
                <mailto:winfi...@gmail.com>>
                *Sent:* Monday, 28 May 2018 15:13
                *To:* Tag discussion, strategy and related tools
                <tagging@openstreetmap.org
                <mailto:tagging@openstreetmap.org>>
                *Subject:* Re: [Tagging] roundtrip

                An example of a (bus) route that goes out and comes
                back to the same location. It's not circle shaped at
                all, but that shouldn't matter for circular route.

                I removed roundtrip=yes and replaced it with

                circular_route=yes

                closed_loop=no

                If the last way wouldn't be in there, closed_loop
                would be yes. But the first and the last bus stops are
                not exactly opposite one another.

                Jo

                2018-05-27 6:22 GMT+02:00 Paul Johnson
                <ba...@ursamundi.org <mailto:ba...@ursamundi.org>>:

                    On Fri, May 25, 2018 at 5:41 AM, Peter Elderson
                    <pelder...@gmail.com <mailto:pelder...@gmail.com>>
                    wrote:

                        I wish you a happy trip on that bus, hope it
                        has toilets and a tolerable coffee machine

                    Oh, you sweet, summer child. Someone's never tried
                    to take a suburban route in the US, even in a
                    "transit oriented" American city...


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