2011/5/13 Nathan Edgars II <nerou...@gmail.com>: > OK, but there's still the issue of a so-called "flush median". I think in a > rural area with few intersections this would be called a dual carriageway. I > can't find an image, but Interstate 90 used to have one over Lookout Pass in > Idaho. You can imagine http://www.youtube.com/watch?v=cPaP3K9xp3g with the > concrete barrier removed.
We should make a difference between "physically impossible" and "physically possible but legally forbidden". This is important for a series of situations, e.g. an emergency car in action could cross a road marking without problems (paying attention to surrounding traffic), while if would still be physically impossible to cross a concrete or steel barrier. Ideally our data would allow to extract this information. cheers, Martin _______________________________________________ Tagging mailing list Tagging@openstreetmap.org http://lists.openstreetmap.org/listinfo/tagging