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Good evening Michael, while studying for my exams I came across your question and I'm happy to answer this one. I attached a link to an image from my railway engineering book, which confirms that it is an expansion device. http://puu.sh/iyWhR/b070cc5e04.jpg After my exams are finished I'll be more active on ORM again. Good luck! Kind regards, Jeroen > Op 22 jun. 2015 om 23:23 heeft Michael Reichert <nakaner at gmx.net> het volgende geschreven: > > Hi Martin, > >> Am 2015-06-22 um 21:53 schrieb Martin Simon: >> >> I would like to add some detail on railway and tram lines in my area and >> have been searching for a tag for "rail movement joints" / "railway >> expansion devices" (I found these terms online, the German term is >> "Auszugvorrichtung"). > > Is this a rail movement joint? > http://www.mapillary.com/map/im/vbvbEe2wwtF_4MlMw6cakw (zoom in) > Btw, driving above it is horrible because it is no smooth curve. > >> How should we tag these features in OSM? >> >> railway=movement_joint? >> >> railway=expension_device? > > Have you had a look into English books, professional railway magazines > etc.? Which word do they use? I can have a look into UIC dictionary at > university tomorrow (I just have to walk to another building of my > university). > >> Which object type should be used? From a map perspective, they might be >> "point" features, marking the point where the tracks are cut. If you're a >> railway planner, however, you need to consider that the device itself has a >> length of several meters - not as big as the average switch/turnout, but >> still... > > http://www.mapillary.com/map/im/vbvbEe2wwtF_4MlMw6cakw > is short, I would map it as a node. We also map switches with speed > limits of 200 km/h as nodes! > > Best regards > > Michael > > > -- > Per E-Mail kommuniziere ich bevorzugt GPG-verschlüsselt. (Mailinglisten > ausgenommen) > I prefer GPG encryption of emails. (does not apply on mailing lists) > > _______________________________________________ > Openrailwaymap mailing list > Openrailwaymap at openrailwaymap.org > http://lists.openrailwaymap.org/lists/listinfo/openrailwaymap