I found this, from 2021 (« avant-projet ») but there are obvious differences, the loop through Auguste Bourgeois was intended with a clockwise loop for motor traffic : https://www.anderlecht.be/sites/default/files/medias/Files/Projet/BonAir/210331_Pr%C3%A9sentation%20AVP%20interm%C3%A9diaire%20habitants-compress%C3%A9.pdf