This standard specifies the classification and codes of basic geographic information elements, which are used to identify the types of basic geographic information elements in digital form. This standard applies to the collection, update, management, distribution services and product development of basic geographic information data, including the construction and application of basic geographic information databases with a scale of 1:500 to 1:1 000 000, the construction of basic geographic information public platforms for various professional information systems, the exchange and sharing of basic geographic information between different systems, and digital mapping, mapping and map updating. GB/T 13923-2006 Classification and codes of basic geographic information elements GB/T13923-2006 Standard download decompression password: www.bzxz.net
This standard specifies the classification and codes of basic geographic information elements, which are used to identify the types of basic geographic information elements in digital form. This standard applies to the collection, updating, management, distribution services and product development of basic geographic information data, including the construction and application of basic geographic information databases at a scale of 1:500 to 1:1,000,000, the construction of basic geographic information public platforms for various professional information systems, the exchange and sharing of basic geographic information between different systems, as well as digital mapping, compilation and map updating.

ICS 07.040
National Standard of the People's Republic of China
GB/11 13923—2006
Generation GB/T139231992, GB14804—1993, GB/T15660---1995 Specifications for feature classification and codes of fundamental geographic information elements information2006-05-24Release
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Standardization Administration of China
2006-10-01Implementation
2 Terms and definitions
Classification and coding principles
Element classification
5 Element coding
Classification and code expansion principles
Appendix A (Normative Appendix)
Appendix B (Normative Appendix)
Classification of basic geographic information elements (major categories, medium categories) Classification and codes of basic geographic information elements at all levels of scale GB/T13923—2006
GR/T 13923—2006
This standard replaces GB/T13923-—1992 National Basic Information Data Classification and Code", GB14804-1993 "1:5001:10001*2000 Topographic Map Element Classification and Code" and GB/T15660—1995 1:50001:100001:250001:500001:100000 Topographic Map Element Classification and Code". Compared with the three standards it replaces, this standard has the following main changes: ·Introduces the concept of inter-face entity objects instead of topographic map objects, and the topographic elements of all scales are considered uniformly, and the element classification and the same element name in the original three standards are unified.
The classification of elements and the element code are unique; a pair of elements are re-encoded with six digits.
Appendix A and Appendix B of this standard are normative appendices: This standard is proposed by the State Administration of Surveying, Mapping and Geoinformation.
This standard is under the jurisdiction of the National Technical Committee for Geographic Information Standardization. The drafting unit of this standard is the National Institute of Surveying, Mapping and Standardization. The main drafters of this standard are Zhang Kun, Xiao Xuenian, Yin Yi, Ma Xiaoping, Duan Yihong and Xia Xia. The previous versions of the standards replaced by this standard are: GB/T13923—1992
-GB14804—1993.
-GB/T15660—1995.
GB/T13923-2006
This standard is based on the existing 1:5001:1000 in my country
1:2000,1150001*100001:250001:500001:100000,1:2500001:500000
) 1:1000000 terrain diagrams and their related terrain element classification and codes, and adopts a scientific classification system to systematically and comprehensively organize, classify and supplement geographic information elements from the perspective of basic geographic information. Through the classification and coding of elements, the code structure with clear categories and levels is determined, and finally a unified and coordinated standard text of basic geographic information element classification code is formed in my country to meet the current needs of my country's large, medium and small scale basic geographic information data collection, database construction, data exchange and application.
1 Scope
Classification and code of basic geographic information elements
GB/I ​​13923--2006
This standard specifies the classification and code of basic geographic information elements, which are used to identify the types of basic geographic information elements in digital form. This standard is applicable to the collection, update, management, distribution services and product development of basic geographic information data, including the construction and use of basic geographic information databases with a scale of 1:500 to 1:100000, the construction of basic geographic information public platforms for various professional information systems, the exchange and sharing of basic geographic information between different systems, digital mapping, map compilation and map update, etc. 2 Terms and definitions The following terms and definitions apply to this standard. 2.1 Basic geographic information Fundamental geographic information Fundamental geographic information refers to the geographical elements, soil, place names and location information described by basic geographic information. 3 Element type Element type Graphigraph A type of real-world phenomenon with a common meaning. 3 Classification and coding principles 3.1 Scientificity Classification should be based on modern data and database technology to form a systematic element.
3.2 System consistency
--Elements in 1: b
3.3 Stability
: 10002
rmation
ground and facilities
ment, pipelines, borders, political regions, landforms, and energy 2R
and management information, according to the characteristics or attributes of the basic information, the basic geographic classification system selects the most characteristic and completeness and scalability of each element in the database. The classification system covers the existing multi-scale basic geographic information element types, which not only reflects the type characteristics of the elements, but also reflects the relationship between the elements, and has integrity. The code structure leaves room for adaptation. 3.5 Applicability
The classification system fully considers the connection with the original system, and the element names try to use the customary names. 4.1 The element classification adopts the linear classification method. The element types are divided into four levels according to the subordinate relationship: major category, medium category, minor category and subcategory. 4.2 Human beings include 8 categories: positioning basis, water survey, settlements and facilities, transportation, pipelines, boundaries and political regions, landforms, soil quality and vegetation; the medium category is divided into 46 categories based on the above major categories, see Appendix A. Place name elements are specifically reflected in the minor category in a special coding method as an implicit category.
GB/T13923—2006
4.3 Minor categories and subcategories are classified according to the three scales of 1:5001110001:20001:5000~1:100000 and 1250000~1:1000000, see Appendix 13, 4.4 Human beings and medium categories shall not be redefined or expanded. Minor categories and subcategories shall not be redefined, but can be expanded as needed. 5.1 Code structure The classification code adopts 6 decimal digits, which are the major category, medium category, minor category and subcategory codes arranged in numerical order. The specific structure is as follows: (1) The first digit from the left is the major category code; (2) The second digit from the left is the medium category code, which is the feature class formed by the major category: xx (3) The third and fourth digits from the left are the minor category code, which is the feature class formed by the subdivision on the minor category basis; (4) The fifth and second digits from the left are the subcategory code, which is the feature class formed by the subdivision on the minor category basis. 5.2 Feature code The classification and code of basic geographic information elements at all scales are shown in Appendix B. 6 Principles of classification and code expansion 6.1 When the feature types provided in Appendix B still cannot meet the classification needs, they shall be expanded according to the principles of 6.2 and 3.3, but the code position shall not be expanded. 6.2 The small and sub-classes of elements should be expanded on the classification of the same level. The expanded small and sub-classes should be classified into the corresponding middle and small classes and explained in the relevant data.
6.3 The expanded types and codes should comply with the provisions of Chapter 5. The existing 1:500 full 11000000 codes shall not be redefined. 2
Appendix A
(Normative Appendix)
Classification of Basic Geographic Information Elements (Major Classification.(Medium category) Major categories of elements
Basis for determination
Facilities in residential areas
Boundaries and political divisions
Measurement control points
Mathematical basis
Haiying elements
Other water system essentials
Water conservancy and ancillary facilities
Residential areas
Industries and mining and their facilities
Agriculture and its facilities
GB/T13923—2006
Main content Category
Public service and its facilities
Scenic spots
Fundamentals
Scientific observatory
Other difficult structures and their facilities
Inter-city highways
Urban roads
Rural roads
Road structures and ancillary facilities
Water transport facilities
Air tunnel facilities
Other transportation facilities
Transmission lines
Communication lines|| tt||Oil, gas, water transmission pipelines
Urban pipelines
Outside areas
National administrative regions
Provincial administrative regions
Punch-level administrative regions
County-level administrative regions
Township-level administrative regions
Other areas
GB/T13923—2006
Required
Sandalwood and soil
Summer and other products Line
Elevation annotation point
Water area contour line
Underwater annotation point
Natural land
Artificial landform
Agricultural and forestry land
Urban green land
Appendix E
(Normative Appendix)
Classification and code table of basic geographic information elements of customer scale "\ indicates the basic geographic information element class that should be included in this scale segment. Classification
100000
110004
110100
110101
110102
110103
110200
110201
110202
110300
110301|| tt||110302
F10400
110401|| tt||110402
119000
120000
120100
120200
120300
120400
210100
2101c1||t t||210102
21c103
210104||tt ||21C2C0
210300
210301
Positioning basis
Element name
Quantity control point
Plane bending control
Avoidance adjustment point
Acceptance origin
Accurate point
Display positioning control point
Satellite positioning continuous operation
Satellite positioning grade point
Other egg measurement control points||tt| |Gravity point
Independent astronomical point
Type control point annotation
Stimulus basis
Raw meat map mouse line
Star mark sea
North of Cancer
Chongzuo River
Surface river
Underground river section
Hexia river section out of population
Disappearing stream section
Seasonal river
Yudi River (dry riverbed)
River dry river
1 : 5001 t 1 co0
1:2c00
1 : 5 000 -
1 + 100 000
GB/T13923—2006
1 : 250 000 -
1t1 000 000 | |tt | t||220301
220302
220303
220304
220400||tt| |220500
220600
230700
220800
220900
221000
229000
230000
230100
230101
23 0102
230200
230300
239000
240000
2401 00
240101
240102
240200
240300
249000
250100
250200
250300
Name
Overflowing river
River note
Surface main channel
High and low surface main channel
Surface branch
High surface channel
Underground channel outlet||t t||Kanez
Water conveyance aqueduct
Water conveyance tunnel
Inverted siphon
Mianyang Canal Notes
Perennial swimming pool, pondwww.bzxz.net
Seasonal lake
Lake Notes
Reservoir in construction
Spillway
Spillage tunnel, water outlet
Reservoir Notes
Ocean Important
Coastline
Thousand-out line
.............
......
11 500 1+1 000
1:2 000
1: 5 000 --
1:100 000
1 * 250 000 ~
1*1000 00c
250400
250401
250402
250403
250404
250405
250106
250407
250408
2504 09
250410
250411
25C5Co
250501
250502||t t ||250600 | |260300
260400
26050C
269600
260700
2608 00
260900
261000
261100
261200
261201
261202
261300
Case Name
On the beach, tidal flat
Sand and alum beach, gravel beach
Rock and shoal
Mud beach
Sand and mud beach
Mangrove beach
Shellfish breeding beach
Narrow dry beach
River channel downstream
Tidal ditch
Dangerous area
Dangerous shore area
Dangerous sea area
Dry mountain petal
Ocean Posu notes
Other important water systems
Intersection of ice system
River, lake island
Water boundary
Submerged beach
Geothermal well
Close to water, watertight
Waterfall, waterfall
Swamp, wetland
Passable
Impassable
1:1 000
1:2 000
............
1 :5 000--
1:100 G0G
......
GB/T13923--2006
11250c00
1 +1000 000
GB/T13923—2006
261301
261302
261303
261304
269000
276000||tt ||270100
270101
270102
270200
270201
270202
270300
270400| |tt||270500
270600
2707C0
270800
270801
270802
279000
300000||tt ||310600
310100
3t0101
310102
310133
310104
310105
310106| |tt||3t0107
310108
310109
310200
310300
310301
310302
a10400||tt ||Element name
River flow direction
Ditch flow direction
Tidal flow direction
River flow direction
Other water system element notes
Benefits and related corrosion facilities
Pumping station
Association area|| tt||Love Image Frequency
Water Neck Fungus
Chouqi Wall
Medical Island Hongnao
Kangli and Xie Layer Facilities Notes
Residential Area Cuiyinxiong
Resident Education
Provincial City
Prefecture-level City
Town
Township, Town
Administrative Village| |tt||Natural village
Agricultural, forestry and fishery units
Single house, general house
Complete house
House under construction
House in disaster area
11: 500 1+1 000
1:2000
2369583
1: 5 000 --
1:100000
1 : 250 000 --| |tt||111900 00
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