GB/T 20257.2-2017 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20257.2-2017	RFQ	ASK	3 days	Cartographic symbols for national fundamental scale maps -- Part 2: Specifications for cartographic symbols 1∶5 000 and 1∶10 000 topographic maps	Valid
GB/T 20257.2-2006	RFQ	ASK	3 days	Cartographic symbols for national fundamental scale maps -- Part 2: Specifications for cartographic symbols 1: 5000 and 1: 10000 topographic maps	Obsolete

Similar standards

GB/T 36299   GB/T 14950   GB/T 24355   GB/T 20257.4   GB/T 20257.1   

Basic data

Standard ID: GB/T 20257.2-2017 (GB/T20257.2-2017)
Description (Translated English): Cartographic symbols for national fundamental scale maps -- Part 2: Specifications for cartographic symbols 1��5 000 and 1��10 000 topographic maps
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A79
Classification of International Standard: 07.040
Word Count Estimation: 102,164
Date of Issue: 2017-10-14
Date of Implementation: 2018-05-01
Older Standard (superseded by this standard): GB/T 20257.2-2006
Regulation (derived from): National Standards Announcement No. 26 of 2017
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 20257.2-2017: Cartographic symbols for national fundamental scale maps -- Part 2: Specifications for cartographic symbols 1∶5 000 and 1∶10 000 topographic maps

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
(National basic scale map schema Part 2. 1.5 000 1.10 000 topographic map schema) ICS 07.040 A79 National Standards of People's Republic of China Replace GB/T 20257.2-2006 National basic scale map schema Part 2. 1.5000 1.10000 topographic map Part 2.Specificationsforcartographicsymbols 1.5000 Released on.2017-10-14 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 General Provision 1 3.1 Classification of symbols 1 3.2 Symbol size 1 3.3 Positioning of symbols 1 3.4 Symbol Configuration 2 3.5 Symbol Usage and Requirements 2 3.6 Topographic map framing and contour finishing 3 3.7 Topographic map color 3 4 symbols and notes 3 4.1 Positioning Basics 4 4.2 Water System 4 4.3 Residential areas and facilities 18 4.4 Transportation 38 4.5 Pipeline 50 4.6 Realm 52 4.7 Landform 54 4.8 Vegetation and soil quality 62 4.9 Note 70 Appendix A (Normative Appendix) Description Notes Notes Table 76 Appendix B (informative appendix) Sample example 78 Appendix C (Normative Appendix) Figure Finishing Style 92 Reference 93 Index 94

Foreword

GB/T 20257 "National Basic Scale Map" is divided into four parts. --- Part 1. 1.500 1.1000 1.2000 topographic map; --- Part 2. 1.5000 1.10000 topographic map; --- Part 3. 1.25000 1.50000 1.100000 topographic map; --- Part 4. 1.250000 1.500000 1.1000000 topographic map. This part is the second part of GB/T 20257. This part replaces GB/T 20257.2-2006 "National Basic Scale Map Drawing Part 2. 1.5000, 1.10000 Shape chart. The main changes in this section compared with GB/T 20257.2-2006 are as follows. --- Added 21 elements. tailings pond, tower, construction area, open cargo warehouse, material field, dedicated oxygen supply point, park, playground, fitness, Recreational facilities, observation deck, sun buddha, wind wall, high speed railway, village road, street, service area, wildlife passage, heat sink, straight Ascending aircraft apron, territorial sea baseline, territorial sea base point, wind and sand fixed square, bare land, glaciers (note); --- Supplementary and improved indicators of the selection of factors; --- Modify the 4.1 measurement control point in the original standard to the positioning basis; --- Remove the main roads, secondary trunk roads and feeder lines in the original standard 4.3.1 block from the residential areas and facilities, and class them into 4.4 traffic categories; --- Remove the original standard 4.2.22.1 Ming Reef from the reef, into the island of 4.2.23, water island; --- Improve the 4.4.31 schools in residential areas and facilities, and modify “b. primary and secondary schools” to “b. primary, primary and vocational education schools”; --- Change the other roads in 4.4.9 to village roads and add a brief description of the village roads; ---Modified and improved some symbol size, color, description and figure decoration in the original standard. This part is proposed by the National Bureau of Surveying and Mapping Geographic Information. This part is under the jurisdiction of the National Geographic Information Standardization Technical Committee (SAC/TC230). This section drafted by. National Surveying and Mapping Geographic Information Bureau Surveying and Mapping Standardization Institute. The main drafters of this section. Lu Yuxia, Huang Wei, Duan Yihong, Ander Gong, Liu Xiaoqiang, Zhang Ying. The previous versions of the standards replaced by this section are. ---GB 5791-1986; GB/T 5791-1993; ---GB/T 20257.2-2006. National basic scale map schema Part 2. 1.5000 1.10000 topographic map

1 Scope

This part of GB/T 20257 specifies the symbols and notes of various features and geomorphological elements represented on the 1.5000 and 1.10000 topographic maps. Remarks and frame finishing, as well as the use of these symbolic methods and basic requirements. This section applies to the mapping of 1.5000, 1.10000 topographic maps. The preparation of the geographical base map can be used as reference.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 13989 national basic scale topographic map framing and numbering

3 General regulations

3.1 Classification of symbols 3.1.1 Scale symbol. When the feature is reduced by the scale, its length and width can be expressed by the scale symbol. 3.1.2 Semi-scale symbol. After the scale is reduced by the scale, the length can be scaled and the width cannot be expressed by the scale. number. Mark the width dimension value next to the symbol. 3.1.3 Not according to the scale symbol. After the scale is reduced by the scale, its length and width cannot be expressed by scale. Marker symbol next to the symbol Inch value. 3.2 Symbol size 3.2.1 The size values marked with numbers next to the symbols are in millimeters (mm). 3.2.2 Only one dimension value is placed next to the symbol, indicating the diameter of the circle or circumcircle, the length of the equilateral triangle or the square; the two size values are For the column, the first number indicates the height of the main part of the symbol, the second number indicates the width of the main part of the symbol; the number of one end of the line symbol Word, single line refers to its thickness, and two parallel lines refer to the width of the line (the street refers to the width of the blank part). Need special mark on the symbol The size value of the note is indicated by a dotted line. 3.2.3 The thickness of the symbol line, the length of the line segment and the angle of the intersecting line segment, etc., are not marked with the symbol of this figure. general In the case, the line is thicker by 0.12 mm, the diameter of the point is 0.2 mm, and the line length of the non-main part of the symbol is 0.4 mm (such as a steep and short line). The angle of the vertical intersecting line segment is 45° or 60°. 3.3 Symbol positioning 3.3.1 There is a point in the symbol graph, which is the physical center position of the feature. 3.3.2 Symbols such as circles, squares, and rectangles, and the positioning point is at the center of its geometry. 3.3.3 The wide-bottom symbol (yurt, chimney, water tower, etc.) is located at the center of its bottom line. 3.3.4 The symbol with the right angle at the bottom (windmill, road sign, independent tree, etc.) locates the apex at its right angle. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20257.2-2017_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20257.2-2017_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20257.2-2017_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20257.2-2017_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 20257.2-2017?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20257.2-2017 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.