Closed way with junction=interchange is not interpretated as area

[dktue]

A closed way with junction=interchange like Autobahnkreuz Stuttgart should be interpreted as area. Currently it is interpreted as closed polyline.

[quincylvania]

Hi and welcome, @dktue.

The junction tag has historically been difficult for iD to interpret since values like this are used for areas while values like junction=roundabout are used on linear highway features. As such, iD can't tell if an unknown junction tag implies area or not. See openstreetmap/iD@7811588 and openstreetmap/iD@6dfdec0 for more info.

We could give iD the necessary info by adding presets for more junction values, but most of these tags aren't used incredibly often and the wiki documentation doesn't define what they all mean. For now you can add area=yes to any way to make iD treat it as an area.

[dktue]

Thanks for hinting the workaround @quincylvania : What track would you suggest to get the (in my eyes correct) solution done?

[quincylvania]

What track would you suggest to get the (in my eyes correct) solution done?

@dktue If you or others could document on the wiki what junction=interchange is and how to map it then we could probably support it in iD.