GB/T 20257.4-2017
ActiveCartographic symbols for national fundamental scale maps—Part4:Specifications for cartographic symbols 1︰250 000 1︰500 000﹠ 1︰1 000 000 topographic maps
国家基本比例尺地图图式 第4部分：1:250 000 1:500 000 1:1 000 000地形图图式
Application Summary AI generated
This standard specifies the cartographic symbols, colors, and annotation rules for 1:250,000, 1:500,000, and 1:1,000,000 scale topographic maps in China. It is applied in national surveying and mapping, geographic information production, and land planning to ensure consistent representation of terrain, water systems, settlements, and transportation networks across medium-to-small scale official maps.
Related Standards
GB/T 17159-2009
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GB/T 14912-2005
Specifications for computer-aided mapping of large-scale topographic maps
GB/T 6962-2005
Aerial photographic specification for 1:500, 1:1000, 1:2000 scale topographic maps
GB/T 19710-2005
Geographic Information-Metadata
GB/T 19711-2005
Data model and data exchange format for navigable spatial database
GB/Z 33451-2016
Geographic information—Spatial sampling and statistical inference
GB/Z 34429-2017
Geographic information—Imagery and gridded data
GB/Z 40524-2021
Spatialized integration model of thematic information
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.