Hi Sarah
I took a closer look at the section of the A3 by Mumpf which your map is highlighting. I'm confused by what JOSM is showing me. Take for example:
Node: 453380 Data Set: f7cbcc Edited at: 2011-08-02T20:46:20Z Edited by: rüdi (158828) Version: 5 In changeset: 8905073 Coordinates: 47.5463722, 7.8562167 Coordinates (projected): 874550.042605612, 6031716.415072963 Part of: Way: 44833543
This is the most westerly node highlighted on your map. JOSM, in the Author section, shows a green tick in the CT column for Rüdi.
The next node east:
Node: 453381 Data Set: f7cbcc Edited at: 2010-05-18T19:40:45Z Edited by: kowoma (86889) Version: 6 In changeset: 4742116 Coordinates: 47.5462619, 7.858872 Coordinates (projected): 874845.6292495155, 6031698.224481425 Part of: Way: 44833543
Also has a green tick in the CT column.
These nodes don't seem to be anonymous and the authors seem to of accepted the CT. Do these nodes need replacing?
Thanks Andrew