On Sun, 16 Dec 2018 at 01:24, Joseph Eisenberg <joseph.eisenb...@gmail.com> wrote: > > While checking the rendering of highway link roads (eg motorway_link, > primary_link, tertiary_link), I noticed that in some cases these tags > are used when a road splits in a Y-junction, for example before a > traffic circle / roundabout. In some areas these are the most common > forms of _link for less major roads, eg secondary_link and > tertiary_link.
I'd say that a road is only a highway link if it doesn't belong to one or the other road. For example, this roundabout entrance https://www.openstreetmap.org/way/631552692 clearly belongs to the secondary road 144, whereas this road section https://www.openstreetmap.org/way/201572456 which bypasses the roundabout, belongs neither to the secondary road 144 nor the primary road 9. And regarding this short road section at an intersection https://www.openstreetmap.org/way/421827471 it's also clear that it geometrically belongs to Avenue de Blonay instead of Rue des Chenevières. > Examples of tertiary_link used at a roundabout (rendered thinner in > these examples) > https://user-images.githubusercontent.com/42757252/50000948-8e4c7c80-ffde-11e8-8718-3446aefe7ab6.png As in my examples above, i'd tag the bypass in the southwest _link, but not the entrances and exits of the roundabout. > https://user-images.githubusercontent.com/42757252/50000961-9a383e80-ffde-11e8-8d7a-cd85f4dbf125.png Again, i wouldn't tag the roundabout entrances and exits _link. Those are just short road sections that are dual carriageway. > Here are some debatable places where a tertiary_link might be tagged > at a Y-junction: > https://www.openstreetmap.org/node/412162671 Seems fine to me without _link. > https://www.openstreetmap.org/node/2539835932 There's just a triangular painted island, that means it's just one carriageway. Therefore i'd rather not map two one-way road sections there (see https://wiki.openstreetmap.org/wiki/Highways#Carriageways). Regards Markus _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
