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@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)
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