Although it can be interesting how to map embankment properties on other objects like roads or railroads (where the discussion led in the meantime), this discussion started as a question how to map embankments on their own, as features. I am interested in providing the data needed to create a map signature like the embankments/slopes visible here (they use a similar signature than OSM-Carto for embankments):
http://www.archivfreunde-rheinbach.de/images/Mitteilungsblatt/7/herrmann/erdwerk.png Properties like length and slope are not suitable for irregular shapes (=most embankments, at least at their ends), i.e. the length of the slope changes. I believe we do need an upper and a lower way and put them somehow together, but I am not sure which way is better (other ways or a relation). Cheers, Martin
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