The most common thing is that the main road directly impacts the gate, that is to say, when the gate is opened, you can directly see the main road directly stabbing, or you can see the path and stairs directly stabbing, which is road punching. This kind of rush is more troublesome. If the traffic or other things don't stop, just crash in. Moreover, this pattern is also prone to lotus disaster. Generally speaking, the road rush directly causes problems to the building, and the single unit above the building will not have problems. To solve the urgency of the road, we usually put a wall in front of the door or something.