Floor numbering rules

The house numbers on both sides of the road are generally numbered continuously from east to west, from south to north, left single and right double. The road extending from the urban area to the suburbs can be arranged from the urban area to the suburbs. Lanes (alleys) or residential areas (communities, buildings) extending from both sides of the road take the road as the starting point for the compilation of house numbers (buildings).
1. For roads with short length, few buildings on both sides, or with natural geographical entities such as rivers, green spaces, parks, etc. on one side of the road, the house number can be compiled with continuous natural numbers.
2. The preparation of house numbers on both sides of the road should basically correspond, and the open space to be built should be given a reserved number. Shorter alleys (alleys), subject to availability.
3. If the unit using the house number or the related building occupies a large distance on one side, a collective house number can be adopted, for example, the compilation is: “×× Street ×× No.—×× No.”,  “×× Road×× Lane×× —××”.  If the same unit or household has more than one house number, one of them should be selected for unified external use.

4. The connecting number "—" is generally not used to set up semicolons on both sides of the road. For the lanes that start from one side of the road and are within 50 meters in length and do not pass through, the house number at that place is continuously programmed inward.