One downside of mapping the railway on a separate layer is that intersecting streets would be neglected, such as S Main St at the next intersection. S Main St actually crosses the rail and some part of that intersection should probably be tagged with info about the rail crossing (i.e. they should share a node), but this would not be caught by QA / editors with validation because different-layer ways are allowed to intersect without sharing a node.
There's also potential for impacts on other features like footways that intersect or ways that actually are on a different layer that now need to be bumped up/down to avoid intersecting the rail. François' suggestion seems like the most descriptive option in lieu of a lane-like standard for composite ways. On Wed, Apr 11, 2018 at 12:08 PM André Pirard <a.pirard.pa...@gmail.com> wrote: > On 2018-04-11 13:47, François Lacombe wrote: > > I would definetly map it with 2 distinct ways. > They can both share the same nodes, or map the road as two "oneway" > highways with the railway between both directions > > Good idea sharing nodes, that's doable but a bit tricky with JOSM. I > wonder about other editors. > I would however make a short test to see what Osmose say about it (rightly > or not). > There's a floating rule that ways cannot overlap unless making areas share > the same limits (e.g. buildings). > I would raise the layer=* of the railway. I seem to think overlapping is > allowed then. > I swear I don't map for the render but that doesn't stop me wondering what > it will be. > > Cheers > > André. > > All the best > > François > > *François Lacombe* > > fl dot infosreseaux At gmail dot com > www.infos-reseaux.com > @InfosReseaux <http://www.twitter.com/InfosReseaux> > > 2018-04-11 0:48 GMT+02:00 Paul Johnson <ba...@ursamundi.org>: > >> >> >> On Tue, Apr 10, 2018, 17:30 Albert Pundt <roadsgu...@gmail.com> wrote: >> >>> What's the best way to map a railway along a street, and how are the >>> street intersections to be mapped? For example, this street >>> <https://goo.gl/maps/XPCxsRkDZr22> in Lewistown, PA has a freight line >>> running along the middle. Should it be mapped as two overlapping ways, as >>> that example is currently, or should they be drawn as one way with all the >>> highway and railway tags on it? >>> >> >> The highway centerline at the mean location of the middle of the road, >> per usual, and the tracks mapped between the rails per usual. >> >>> >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/tagging >> >> > > > _______________________________________________ > Tagging mailing > listTagging@openstreetmap.orghttps://lists.openstreetmap.org/listinfo/tagging > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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