I added node directly on the way with tag barrier=gate. That should avoid routers to use this highway. There is probably a gate somewhere on the north part of this complex too. I deleted your tag with historic city gate. Thanks for reporting
---
Dodao sam node direktno na way sa tagom barrier=gate. Sad ruteri ne bi trebali da vode ovim putem. Verovatno ima i rampa sa gornje strane ovog kompleksa. Izbrisao sam tvoj tag sa istorijske kapije grada, delovalo je netacno. Hvala sto si javio!