FYI, we had voluntarily *not* added such a restriction because of the provision at the end of article 9.1.2.1° of Belgian traffic law.

There is an exception: if the cycle track is on the left-hand side and if the cyclist wants to turn right onto Rue d'Oultremont (or do Oultremont→Yser→Chevalerie, for instance), then riding on the ordinary road is legal.

I won’t fight for this one, because cycle routing will still continue working here, but this is something always useful to know.

Have a nice day.