This standard specifies the coding structure rules for the main geographical elements of a city, such as urban roads, road intersections, neighborhoods, and municipal engineering pipelines, in order to unify the code structure of urban roads, road intersections, neighborhoods, and municipal engineering pipelines in large, medium, and small cities across the country, and provide the principles to be followed for cities to establish urban geographic coding systems. This standard is applicable to the compilation of codes for urban roads, road intersections, neighborhoods, and municipal engineering pipelines in large, medium, and small cities across the country. GB/T 14395-1993 Urban Geographic Elements--Coding Structure Rules for Urban Roads, Road Intersections, Neighborhoods, and Municipal Engineering Pipelines GB/T14395-1993 Standard Download Decompression Password: www.bzxz.net
This standard specifies the coding structure rules for the main geographical elements of a city, such as urban roads, road intersections, neighborhoods, and municipal engineering pipelines, in order to unify the code structure of urban roads, road intersections, neighborhoods, and municipal engineering pipelines in large, medium, and small cities across the country, and provide the principles to be followed for cities to establish urban geographic coding systems. This standard is applicable to the compilation of codes for urban roads, road intersections, neighborhoods and municipal engineering pipelines in large, medium and small cities across the country.

National Standard of the People's Republic of China
Urban geographical feature
City road, road intersection,
Neighborhood, municipal piping system rules for coding structure1 Subject content and scope of application
GB/T 14395--93
--Coding structure rules for urban roads, road intersections, neighborhoods, municipal piping, etc. This standard specifies the main urban geographical features--rules, in order to unify the coding structure of urban roads, road intersections, neighborhoods, municipal piping for large, medium and small cities across the country, and provide the principles to be followed for cities to establish urban geographical coding systems. This standard is applicable to the compilation of codes for urban roads, road intersections, neighborhoods and municipal piping for large, medium and small cities across the country. 2 Terminology
2.1 Urban geographical feature refers to the main geographical factors within the urban area that form the differences between geographical types and geographical areas. These geographical factors have significant differences in spatial distribution and play a leading role in the formation and evolution of geographical environmental characteristics. 2.2 Pattern of city layout refers to the plane shape, internal functional structure, road system structure and form of the urban area. 2.3 Classification of city road Urban roads are divided into five categories according to their status in the road network, traffic function and service function to the buildings along the road. 2.3.1 Expressway
A road with a central dividing strip in the urban road, with more than four lanes, all or part of which adopts grade separation and controlled access, for vehicles to travel at a higher speed.
2.3.2 Arterial road
A road that plays the role of skeleton in the urban road network. 2.3.3 Secondary road
A regional arterial road in the urban road network, connected with the arterial road to form a complete urban arterial road system. 2.3.4 Branch road
Roads in the urban road network that connect to secondary trunk roads or are used within the region. 2.3.5 Other road
Urban roads other than expressways, main trunk roads, secondary trunk roads and branch roads, such as special roads for bicycles and pedestrians. 2.4 Road intersection The intersection of two or more urban roads. 2.5 Road section
Approved by the State Administration of Technical Supervision on May 14, 1993Www.bzxZ.net
Implemented on January 1, 1994
The section between two adjacent road intersections. 2.6 Block
GB/T14395-93
A complete plot of land surrounded by urban roads or surrounded by urban roads and relatively stable urban geographical elements (such as rivers, railways, etc.). 2.7 Street in block
Streets, lanes, alleys, lanes and other roads with road names located inside the block. 2.8 Geographical situation The spatial relationship between a certain area (natural area, economic area and administrative area), urban settlements or factories and mines and some external natural phenomena and social and economic phenomena. Among them, direction and distance are the two most basic elements to determine the location, which are relative and non-repetitive. 3 Basic principles for compiling code structure
3.1 Systematicity
In a city, the coding of urban roads, road intersections, neighborhoods and municipal engineering pipelines is a system. The code type and structure of each system should be basically unified and coordinated to form a complete coding system. 3.2 Applicability
The code structure should be reasonable and applicable. It is determined based on the layout of the city, the characteristics of the road network structure and the urban municipal engineering pipelines and the needs of different application departments. 3.3 Inclusiveness
The code structure should be able to reflect the geographical location and characteristics of urban roads, road intersections, neighborhoods, and municipal engineering pipelines in the city. 3.4 Stability
The code structure should be comprehensively considered to make it stable. 4 Basic structure of the code
4.1 Road code
The road code is composed of a direction code, a classification code, a direction code and a sequence number. 4.1.1 Direction code
According to the different zoning forms formed by the layout of the road network structure of each city, the city is divided into several direction areas that can identify the geographical location as positioning units. The code of this positioning unit is called the direction code. 4.1.2 Classification code
A code indicating the classification of urban roads.
4.1.3 Direction code
A code indicating the direction of the road. If a road with the same road name has two or more directions, the main direction of the road is taken. Road
Direction code
4.2 Road name code
Classification code
Direction code
The road name code is composed of the road code and the road name serial number. The road name serial number is arranged in the same order as the road code serial number. Road
Road code
4.3 Section code
Road name serial number
The section code is composed of the road name code and the section serial number. The section serial number is arranged in the same order as the road name serial number. 17
4.4 Road intersection code
GB/T 14395-93
Road name code
Section serial number
The road intersection code is composed of the direction code and the road intersection serial number. The serial numbers are arranged in a certain order. Road
4.5 Neighborhood code
Road intersection serial number
The neighborhood code is composed of the location code and the neighborhood serial number. The size of the neighborhood should be determined according to the road spacing and road network density or needs of each city. In each location area, the serial number must be arranged in a certain regular order. Street
4.6 Neighborhood road code
The neighborhood road code is composed of the neighborhood code and the neighborhood road serial number. Street
Neighborhood code
4.7 Municipal engineering pipeline code
Neighborhood serial number
Arranged in a certain regular order.
Serial number is composed of location code, classification code and serial number according to
Municipal engineering pipeline code. 4.7.1 Location code
For municipal engineering pipelines buried along the road, the road code is used as its location code, and for municipal engineering pipelines not buried along the road, the location code of the location area is used as its location code.
4.7.2 Classification code
A code indicating the classification of various municipal engineering pipelines. Municipal engineering pipelines include water supply, rainwater, sewage, combined rainwater and sewage, gas, heat, telecommunications, electricity, industrial pipelines, etc.
Municipal engineering pipeline code
Location code
Schematic diagram of the basic structure of the code
GB/T14395-93
Road code
Municipal engineering pipeline code
Location code! Classification code
Municipal engineering pipeline code
Additional instructions:
Road intersection code
Direction code
Road intersection code
Neighborhood code
Direction code
Neighborhood serial number
Neighborhood code
Neighborhood road code
Neighborhood code
Neighborhood road serial number
Neighborhood road code
This standard was drafted by the China Institute of Standardization and Information Classification and Coding and the Beijing Urban Planning and Design Institute. The main drafters of this standard are Jia Haiyue, Liang Yanzhen and Yan Zheng. 19
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