Hm... thinking...had't thought about public transport... If the vehicle justt does another route elsewhere, I think you still have a roundtrip, and a separate route elsewhere. If it's a roundtrip, and a linked branch which is done twice: first role=forward and second role=backward, you still have a roundtrip.
I don't see how and for whom declaring this roundtrip=no would be useful. >From the other end, you may see a route with braches and possibly a circular part as not a roundtrip.What would be the use of tagging such a complex routerelation as roundtrip=yes? If a part is roundtrip and you want to express that, you would need to split the route and tag the roundtrip part separately - but then it's already obvious that this part is roundtrip. Maybe I lack imagination, but I stil do not see any addeed value in this key! 2018-05-25 10:55 GMT+02:00 Warin <61sundow...@gmail.com>: > On 25/05/18 15:48, Peter Elderson wrote: > > What is the use of the key:roundtrip? > Explanations just say > roundtrip <https://wiki.openstreetmap.org/wiki/Key:roundtrip>=yes/no > (optional) > Use roundtrip=no to indicate that a route goes from A to B. Use > roundtrip=yes to indicate that the start and finish of the route are at the > same location (circular route). It seems rather pointless to tag an > obvious a-b route with roundtrip=no, or an abvious roundtrip with > roundtrip=yes. > Why would you tag an a-b route as roundtrip=yes, or a closed route as > roundtrip=no? > > > A route that is 'closed' can be a non round trip. > For example the bus only does one circuit then goes on to another route > elsewhere. This can be done to provide services to both that route and to > other parts of the community with other routes. > There may not be enough demand for a continuous circuit to be viable. > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > > -- Vr gr Peter Elderson
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