Within the joka, houses were located on both sides of the main route to make it hard to see the castle and made the distance to the castle longer by making many bends in the roads and dead-ends.
城下に入ると幹線道路の両脇に家屋を隙間なく配置させることで城を見え難くして、道を鍵形に曲げたり袋小路を設けるなどすることで、城への到達距離を延長した。