The old recommendation was to not split roundabouts. It makes it easier for the software to see it's a roundabout when it's closed, and it makes routing stuff (like counting the exit number) easier.
However, that recommendation changed on the wiki some years ago (AFAICS, without discussion). So now both situations happen (complete roundabout as part of a route, and split roundabouts), and tools have to be able to handle both situations. For me, the disadvantage of split roundabouts is that you can't modify them as easily. When it's a complete circle, it's easy to scale it, rotate it, and make it perfectly circular. With split roundabouts, this becomes harder. I still prefer complete circles for most cases. Regards, Sander 2015-05-15 12:12 GMT+02:00 Marc Gemis <marc.ge...@gmail.com>: > Not everybody splits a roundabout for a route, although I usually split > it. JOSM shows a nice roundabout icon in the route relation editor in case > you do not split. Routers are probably smart enough to "escape" the > roundabout themselves. > When it is not a roundabout, it is normal to split the street (square), > just as with a regular street. > > Extend of market place: area:highway is often mentioned to map the extend > of a street. > > > regards > > > m > > On Fri, May 15, 2015 at 11:49 AM, Jakka <vdmfrank...@gmail.com> wrote: > >> Hi, >> >> How do we tag the roundabouts in a relation of hiking route minor problem >> but bicycle routes (knooppunten) and public transport routes ? >> I cute the roundabouts in pieces highway to highway. Is this the properly >> way? >> But gives the tester prg like http://osma.vmarc.be/ or >> http://analyser.openstreetmap.fr/cgi-bin/index.py?relation=2718669 a >> alert? >> Roundabouts you must take at the right hand.(Europe) >> 1 Example south point 03 to north roundabout 5 highways, coming from the >> south leaving first highway to point 28, got a nice line in relation. >> Coming back from the opposite way from point 28 the way must leave at the >> 4 highway to point 03 a have a gap in the relation. >> If the junction=roundabout must be keep to getter you see symbol >> roundabout. >> 2 Example what with a large square, marketplace, which cannot be tagged >> as roundabout but still need to drive ride right hand around it? >> situation like first example you have a gap in the relation line. >> >> On response of Guy question several wikipage were recommended not easy to >> find your way. >> -- >> >> Jakka >> >> >> _______________________________________________ >> Talk-be mailing list >> Talk-be@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk-be >> > > > _______________________________________________ > Talk-be mailing list > Talk-be@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-be > >
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