I just took another look at several exits in Germany. As in the past I found out that the OSM standard is to have the motorway_junction to the link road before or at the legal point to transition. This is perfectly in line with the motorway_junction page, which states: 'Add a highway <https://wiki.openstreetmap.org/wiki/Key:highway>=*motorway_junction* tag at each node [image: Node] <https://wiki.openstreetmap.org/wiki/Elements#Node> along a highway with named or numbered junctions where a driver can legally exit'.
So we already WIKIed a communis opinio 2017-03-08 18:42 GMT+01:00 Colin Smale <colin.sm...@xs4all.nl>: > Navigation systems, including commercial ones, mostly count down to the > LAST point - where the white triangle or lines make it illegal for you to > transition. This is in line with the wiki and current OSM > practice. Countdown signs on the approach to an exit however go to zero at > the FIRST point you can join the exit lane. People may expect, or prefer, > one or the other. Let's make sure we can accommodate both. > > //colin > > > > On 2017-03-08 18:33, Volker Schmidt wrote: > > At present we have many different approaches out in the field, which make > life difficult to any routing software. > I notice that we have another option, which I have not seen implemented in > the database, i.e. to place the exit tag on the highway at the position of > the last corresponding road sign before the actual split. This would > require on-the ground knowledge or Mapillary/OpenStreetCam photos. It would > also mean that the exit tag is not necessarily on the actual road split on > the map. And it would require a lot of retrofitting work based > on-the-ground checks. > It would be in line with the wiki for "highway=motorway_junction", which > states "This node should be positioned as the last point before the splay > at which it is still possible to make a smooth turn." > > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > >
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