This standard specifies the classification and codes of topographic map elements at 1:500, 1:1000, and 1:2000, which are used to identify the digital information of topographic map elements within the scale range and ensure the consistency of their storage and exchange. GB 14804-1993 1:500, 1:1000, 1:2000 Topographic map element classification and code GB14804-1993 Standard download and decompression password: www.bzxz.net

National Standard of the People's Republic of China
1:5001:10001:2000
Classification and codes for topographic map features
Classification and codes for the features of1:500,1:1000and1:2000tepographicmaps1 theme content and scope of application
GB14804-93
This standard specifies the classification and codes of topographic map elements at 1:500, 1:1000, and 1:2000 to identify the digital information of topographic map elements within the scale range. Ensure the consistency of its storage and exchange. This standard applies to the collection, storage, retrieval, analysis, output and exchange of topographic map element information in 1:500, 1:1000 and 1:2000 digital topographic maps and various spatial information systems based on them. When conducting various forms of digital mapping, various departments can supplement and extend the classification system and coding methods specified in this standard according to different professional needs and regional characteristics, or adopt classification and coding methods that facilitate conversion to this standard. code.
2 Classification and coding principles
This standard uses the line classification method to classify and code topographic map element information according to the following principles. 2.1 Scientific and systematic
This standard uses the current 1;500, 1:1000, 1+2000 topographic map schemas as the classification basis to adapt to the application of large-scale machine-aided survey maps, modern computer and database technology and With management as the goal, strict scientific division is carried out to form a systematic classification and coding system. 2.2 Scalability
This standard sets enough containment categories so that when new information is added, the established classification system will not be disrupted. 2.3 Compatibility
This standard remains basically consistent with GB13923 Classification and Code of Basic Land Information Data in terms of classification system. 2.4 Applicability
While ensuring the scientific and systematic classification of topographic map element information, this standard fully takes into account the special requirements of large-scale full-field digital mapping, so that the lowest level category can be selected and recorded according to the actual conditions of field operations, making the code shorter and easier to remember. 3 Coding method
Topographic information is divided into nine major categories, which are further subdivided into minor categories, primary and secondary categories. The classification code consists of a four-digit code, and its structure is as follows:
X
Major category A
Code
X
Minor
Class
Level code
x
Level code
Major category code, minor category code, primary code and secondary code are arranged in sequence with one decimal digit respectively. Approved by the State Bureau of Technical Supervision on December 28, 1993 and implemented on August 1, 1994
:com4 Classification Code Table||tt| |Code|tt||1
11
111
1111
1112
1113
1114
112
1121
1122
1123
1124
113
1131
1132
114
1141
1142||tt| |115
1151
1152
1153
116
1161
1162
1163
117
118
12
121
1211
1212
1213
1214
1215
13
131||tt ||132
Surveying control points
Plane control points
Triangulation points
First class
Second class
Third class
Fourth class
GB14804—93
Name
Triangulation points on the mound
Class
Third class
Third class
Fourth class
Small triangulation points
5\class
10″class
Small triangulation points on the mound| |tt||5\level
10\level
Traverse point
Level
Second level
Third level
Traverse point on the mound
First level
Second level
Third level
Burial stone control point
Non-burial stone control point
Elevation control point
Leveling point
First level
Second level
Third level
Fourth level
Fifth level
GPS Point
First level
Second level
Name
Description
Code
133
134
135
14
141
1411
1412
1413
1414
2
21
211
212
213
214||tt ||215
216
217
218
22
221
222
223
224
23
231
2311
2312
2313
232
233
234
235
2351
2352
236
237
238
Third level
Fourth level
Fiveth level
Other control points
Astronomical points
First level
Second level
Third level
Fourth level
Residential areas and fences
Ordinary houses
General houses
Simple houses
Houses under construction
Destroyed houses
Sheds
Overhead house
Corridor
Overpass
Special house
GB14804--93
Name
House for living on the ground
House for living on the ground
Mongolian yurt
House ancillary facilities
Corridor
Colonnade
Porch
Outdoor staircase
Skylight of underground building|| tt||Courtyard gate
Fence gate
Door with gatehouse
Door pier
Door top
Pillar (frame), pier
Name
Description
Code
2381
2382
2383
24
241
2411
2412
2413
2414
242||tt| |2421
2422
243
244
245
246
247
248
3
31
311
312
313
314
3141
3142
3143
3144
315
3151
3152
3153
3154
316
317
318
32
321
Fence
Pillars
GB14804-93
Name
Pier not to scale
Pier and column to scale
The Great Wall and masonry walls
Complete walls
Towers
City gates
Destroy city walls
Earth city walls
City gates
Gap
Brick, stone, concrete walls
Earth walls
Fences, railings
Bamboo, wooden fences
Living tree buds
Barbed wire
Industrial and mining buildings and other facilities
Mining facilities
Drilling
Drilling
Exploration
Mining wellheads
Vertical shaft wellheads| |tt||Inclined shaft opening
Horizontal tunnel opening
Small mine
Abandoned mine opening
Vertical shaft opening
Inclined shaft opening
Horizontal tunnel opening
Small mine
Salt well
Oil well, natural gas well
Open-pit mining site
Industrial facilities
Crane
Scale
Description
Code
322
3221
3 222
323
3231
3232
3233
324
3241
3242
3243
3244
325
326
3261
3262
3263
327
3271
3272
3273| |tt||328
3281
3282
329
33
331
3311
3312
3313
332
333
334
335
336
337
3371
3372
3373
Crane
gantry crane
sky crane
conveyor belt
overhead
on the ground
underground
funnel
Bucket in the middle
Bucket on one side
Bucket on the wall
Bucket in the pit
Chute
GB14804—93
Name
Tower-shaped buildings and water towers
Name
Tower-shaped buildings (cooling towers, distillation towers, skydiving towers) water towers
Water tower smoke windows
Smoke windows and flues
Fume halogen
Fume pipe
Overhead flue
Liquid gas storage tank
Storage tank to scale|| tt||Non-scale storage jars
Open-air equipment
Agricultural facilities
Granaries
Non-scale
Non-scale
Granary group
Windmill
Water mill, water wheel
Pump station, water wheel pump
Threshing floor
Feeding farm
Greenhouse , vegetable cellar, greenhouse
greenhouse
vegetable cellar
greenhouse
:com description
code
338
3381
3382
3383
339
3391
3392
34
341
342
3421
3422
3423
343
3431|| tt||3432
3433
3434
3435
3436
344
3441
3442||tt| |3443
345
346
347
348
3481
3482
3483
349 bzxZ.net
35
351
352
3521
3522
3523
3524
Snake Pool| |tt||GB14804-93
name
below the ground
above the ground
covered
fertilizer pool||tt ||To scale
Not to scale
Science, culture, education, health and sports facilities
Weather stations
Radar stations, satellite ground receiving stations
Radar receiving station
Satellite receiving station
Radio telescope receiving station
Environmental protection monitoring station
Atmospheric monitoring station
Noise monitoring station
Surface Water monitoring station
Acid rain monitoring station
Radioactivity monitoring station
Soil monitoring station
Hydrological station
Water level station
Flow station|| tt | On stage
Open-air stage, reviewing stand
Swimming pool
Public facilities
Gas stations
Lighting devices
Street lights||tt| |Pole type lighting
Bridge type lighting
Tower type lighting
Weighing
: Description
Code
353|| tt||354
355
3551
3552
356
357
3571
3572||tt| |358
359
36
361
3611
3612
3613
3614
3615
362
3621
3622
3623
3624
3625
363
3631|| tt||3632
3633
3634
3635
37
371
372
373||tt| |3731
3732
374
375
3751
Fountain pool
rockery mountain
GB14804—93||tt ||Name
Public toilet, garbage station
Public toilet
Garbage station
Guard box, watchtower
Radio pole, tower
Scaled
Non-scale
TV transmission tower
lightning rod
called
commemorative buildings, cultural relics and religious facilities have commemorative significance buildings
monuments
steles, columns, piers
statues
flagpoles
archways, archways, colorful gates
cultural relics| |tt||Pavilion
Bell Tower, Tower, Drum Tower
Old Fortress
Beacon Tower
Pagoda, Sutra Pagoda
Religious Facilities
Temple
Tud Temple
Church
Mosque
Loose bag, sutra pile
Other facilities
Overpass
Underpass
Surface entrances and exits of underground buildings
To scale
Not to scale
Weighbridge
Open-air warehouse
With platform|| tt||Description
Code
3752
376
3761
3762
377
3771||tt| |3772
3773
4
41
411
412
4121
413
414
415
416
417
418
42
421
4211
4212|| tt||422
4221
423
4231
4232
424
4241
4242||tt| |425
426
427
428
43
431
4311
432
Kiln
No platform
Pile dense
GB14804—93
Name
Table kiln, house kiln
Cemetery||tt ||Independent graves
Scattered graves
Grave groups
Transportation and ancillary facilities
Railway
General railway
Electrified railway||tt ||Weighing
Electrified railway poles and transmission lines
Narrow gauge railway
Railway under construction
Light track
Tram track||tt| |cable car track
aerial ropeway
train station and ancillary facilities
platform
with canopy
open-air
overpass|| tt||stairs
underground
underground line
underpass
color light signal
high column color light signal
low Column light signal
arm plate signal
water crane
car stop
turntable
road
highway|| tt||Toll station
Grade highway
Description
Code
4321
4322
4323
4324|| tt||433
434
435
436
44
441
442
4421||tt| |4422
443
444
445
446
45
451
4511
4512
452
4521
4522
453
4531
4532
454
4541|| tt||4542
455
4551
456
4561
4562
4563
4564||tt| |457
458
First-class highway
Second-class highway
Third-class highway
Fourth-class highway
External highway|| tt||GB14804—93
Name
Highway under construction
Grade highway under construction
Exceptional highway under construction
Other roads
Big Car Road
Country Road
According to proportionfeet
not to scale
small road
internal road
staircase road
elevated highway
road ancillary facilities
Culvert
To scale
Not to scale
Tunnel and entrance
Railway line in tunnel
Tunnel entrance
Cutting|| tt||reinforced
unreinforced
embankment
reinforced
unreinforced
myeongdong
myeongdong Railway lines in
Road signs
Milestones
Grade table
Road signs
Bus stops
Retaining walls||tt| |Railway crossing
Name
Description
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