2009/11/3 Randy <rwtnospam-new...@yahoo.com> > Martin Koppenhoefer wrote: > > I concede. > > In fact my OLD Encyclopadia Britannica states that a tunnel is excavated > underground and a "cut and cover" is not truly a tunnel. > > So the question now is how to tag an above ground "tunnel-like" structure > to properly indicate it's characteristics, that is "completely enclosed on > all sides, save for the openings at each end". >
I would call them covered=yes (attribute) or maybe covered=all_sides yes, and how to tag a partly enclosed structure like a gallery in alpine regions (usually covered on top and closed on one side by a heavy concrete structure to protect the street from falling rock and snow). http://de.wikipedia.org/w/index.php?title=Datei:Galeriestra%C3%9Fe_cropped.jpg&filetimestamp=20080413091504 http://de.wikipedia.org/w/index.php?title=Datei:Galeriestra%C3%9Fe.png&filetimestamp=20040809082744 so this could be covered=gallery Even though gallery is somehow ambiguous if I recall right. btw: those "cut and cover"-structures are indeed considered tunnels in some building standards when they're logger than 80 metres (German Standard) or ~160 metres (american standard as of wikipedia:en). Should we ignore this for simplicity or would it meet with what you usually expect by a tunnel? cheers, Martin
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