GB/T 20257.1-2007
AbolishedCartographic symbols for national fundamental scale maps - Part 1: Specifications for cartographic symbols 1:500 1:1000＆ 1:2000 topographic maps
国家基本比例尺地图图式 第1部分：1:500 1:1000 1:2000地形图图式
Application Summary AI generated
This standard defines the specific cartographic symbols, colors, and patterns to be used on large-scale topographic maps at scales of 1:500, 1:1000, and 1:2000. It is applied by surveying and mapping agencies, urban planning departments, and engineering design firms in China to ensure uniform representation of terrain, buildings, vegetation, and infrastructure on detailed site plans. The standard is essential for creating consistent, legally compliant base maps used in land management, construction projects, and municipal planning.
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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.