It's the same situation when there are no signs. Then all roads have same priority and you give way to the vehicle on your right. If 4 vehicles come to the inte

It's the same situation when there are no signs. Then all roads have same priority and you give way to the vehicle on your right. If 4 vehicles come to the intersection at the same time then every vehicle has another vehicle on their right and it's a standstill. If I remember correctly in such situations drivers need to communicate and one vehicle should go first to resolve the situation.