Ciao Luca, For an example of a road with many variations in how the tram tracks are embedded, you can have a look at this stretch I mapped a few months ago:
http://www.openstreetmap.org/#map=16/50.8601/4.3117 To indicate how they belong together, maybe a street or associatedStreet relation makes sense? Jo 2015-02-06 17:29 GMT+01:00 Luca Sigfrido Percich <luca.perc...@gmail.com>: > Hi all, > > first time I write to the list (after lurking for a while), so I introduce > myself. I am from Milano - Italy, I work for the municipality's agency for > environment and mobility, and we'we been working for the last months to > integrate our road graph with OSM. > > Currently in Milano all tram tracks are mapped separately, so they are all > oneway and no way has both highway=* and railway=tram tags (apart from some > cases we're correcting). > > Now, we would like to store the information wether a certain railway track > runs in a road sharing the same space with motor vehicles. > > I am referring to situations similar to this one: > > http://wiki.openstreetmap.org/wiki/File:Tram_Amadeo.jpg > > Which is here on the map: > > https://www.openstreetmap.org/#map=19/45.470987/9.236118 > > I searched the wiki for a tagging or relation scheme, but found none. > > I was thinking about a simple tagging scheme: tram=yes|forward|backward > for the highway, and road=yes for the railway. > > From the previous example (the picture points at the opposite direction of > the highway on which it was taken: > > For the center way (road): > > tram=yes (it's on both directions) > > and on the two railways: > road=yes (the track lies on a road used by motor vehicles) > > We could also user a lanes modifier: > lanes=3 > lanes:backward=2 > tram:lanes:backward=yes|no > tram:forward=yes > > The tram tag should not be used for tracks which run separated from the > road (they are tagged with railway=tram). > > The tram tag should go along with access tags, as we have lanes reserved > for trams and buses/taxis: > > http://wiki.openstreetmap.org/wiki/File:Tram_xxii_marzo.jpg > > So the center way (carriageway reserved to psv with two tram tracks in > shared space) would get tagged as: > access=no > bus=yes > taxi=yes > tram=yes > > We could also think about a relation, type=tram_on_road, it could be > useful for sorting things out in complex multi-carriageway situations like > this one: > > https://www.openstreetmap.org/#map=19/45.49833/9.19607 > > but would also be more difficult for users to mantain and for clients to > consume. > > Any suggestions / impressions? > > Thanks! > > Sig > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > >
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