To make junction and turn left possible:
https://www.waze.com/editor/?lon=4.36061&lat=50.872&zoom=7&layers=965&env=row&segments=191220124,247146930
I unlocked the 2 segments but you have to make the modifications yourself because I don’t see what is needed.
Acidoxy : Don’t you want to brainstorm on how to KISS this place ? It looks like you can have the Avenue de la Reine made of only one segment going though the bridge. Maybe the same for the Allée Verte.
done you can lock back to L3.
I can Kiss if needed, but I don’t think that we can make a crossing between 2 single roads.
Maybe reduce from 3 to 2 and 2 to 1.
relocked
not sure about KISS either