Hi bielebog, 

I performed edits outside the construction area, on the junction, based on map feedback to update the junction into a T-intersection. North Rhine-Westphalia aerial imagery and others do not suggest any physical barrier between lanes so I preformed the edit, maintaining the tags regarding sidewalks. 

Thank you for reverting the changeset. I will make sure to consult the community to understand regional interpretations, especially in the presence of source=survey, before my edits.  