Cartinus wrote: >On Tuesday 01 December 2009 00:20:20 Martin Koppenhoefer wrote: >>there is a proposal for it since March 2007, you can simply find it by >>typing causeway in search. >>http://wiki.openstreetmap.org/wiki/Proposed_features/Causeway > >That page says: >Status: Abandoned > >That search shows you as the fourth result that it is a rejected feature. > >Apparently more people didn't find it worthwhile to pursue that tag >separately. > > >>IMHO it is a very important difference that the causeway is >>frequently below water (tides). Hence it should be marked different. > >Where do you get the idea that a causeway is periodically inundated from? >There certainly are some that are inundated at high tide, but a lot of them >are not. > >1) If the raised bank crosses a lake or the sea, it is called a causeway. >2) If the raised bank crosses a dry valley or a valley with a smal creek, >it >is called an embankment. >3) If the raised bank crosses a swamp or marsh, it can be called either a >causeway or an embankment. > >Ergo: the English language is fuzzy about the difference. > >Even the rendering example on the embankment=yes wiki page is about a >cycleway >crossing a lake. > >If you really want to tag them differently it probably more in line with >other >OSM tags, to tag it as embankment=causeway. See e.g. the bridge=viaduct >tag.
Actually if you read most definitions closely, it's not that fuzzy. The causeway is the byway. It can be on an embankment or some other raised structure, such as low piles (concrete pillars). It can be over water, swamp, or sand. An embankment is a man-made structure, usually earthen or gravel, it can be built on dry or wet land or in water. An embankment doesn't necessarily include a byway of any type. A levee is an embankment, as is a dike, as is the stadium seating at a local high school athletic field. I personally don't think embankment=causeway is appropriate. I might go the other way, i.e., causeway=embankment, to distinguish if from a causeway built on piles (causeway=bridge?). Or, just causeway=yes, embankment=yes. But, I'm responding in two different talk threads. Here, and where this belongs, under tagging. -- Randy _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
