text: I suspect that JOSM may simply give enough rope to hang oneself with, but doesn't give excuse for errors :)
  
   It looks like OSMOSE also picks up on this error, though it looks like you have to filter through a bunch of other errors that should also be fixed (it's mixed in with building crossings and sidewalk crossings with no junction.)
  
  http://osmose.openstreetmap.fr/en/map/#zoom=17&lat=40.109321&lon=-105.178283&item=1070&level=2&tags=&fixable=
  
  Seems OSMOSE cadence isn't too bad either, unlike KeepRight.  Wonder if there are any other QA tools that can pick these problems up?