Richard, Perhaps these cases in which the outline of the bridge was drawn is related to this proposal: http://wiki.openstreetmap.org/wiki/Proposed_features/man_made%3Dbridge
I believe it's main purpose is to solve a known rendering problem in bridges. Nowadays, when two or more parallel ways are in a bridge/viaduct, they are drawn as separate bridges. Drawing the area of the bridge would solve that. Cheers, John 2014-08-12 6:26 GMT-03:00 Richard Z. <[email protected]>: > On Tue, Aug 12, 2014 at 12:23:35AM -0400, Christopher Hoess wrote: > > On Mon, Aug 11, 2014 at 7:57 PM, SomeoneElse < > [email protected]> > > wrote: > > > > > For the benefit of anyone looking at taginfo stats in this thread, it's > > > worth mentioning that there's some "non-survey-based" editing going on: > > > > > > http://www.openstreetmap.org/changeset/24690099 > > > > > > > > All "bridge=drawbridge" to "bridge=movable bridge:movable=drawbridge". > The > > bigger problem is that many of these bridges, whether originally tagged > by > > local surveyors or not, are probably strictly speaking bascule bridges, > > "drawbridge" being used casually for any sort of movable bridge. > > it was a test to see what can go wrong during such conversion. There were > quite some odd cases, like bridge=drawbridge used to "draw" the outline of > the bridge. > > Some time in the future I would like to review all bridge=swing and fix > at least those which are not movable at all but hanging rope bridges > instead. > > Richard > > _______________________________________________ > Tagging mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/tagging >
_______________________________________________ Tagging mailing list [email protected] https://lists.openstreetmap.org/listinfo/tagging
