TS 1662

TS 1662 is a graphic-symbol standard for special signs used on maps and plans at scales of 1:2500 and larger. It also applies to survey and boundary sketch drawings, where consistent symbols help represent land features, limits, and related plan information in a clear and uniform way.

Why symbol systems matter in large-scale mapping

In technical cartography, special signs condense information that would otherwise require lengthy notes. At larger scales, drawings can carry more detail, which is why 1:2500 and larger scales are commonly associated with detailed cadastral, surveying, and engineering plans. In general technical practice, symbol standards support legibility and shared interpretation across different users and drawing sets.

What falls within the document’s scope

This standard covers the special signs intended for use on large-scale maps and plans, as well as on measurement and boundary sketches. It explicitly excludes maps and plans at scales smaller than 1:2500. That distinction matters because symbol density, size, and representation method often change as mapping scale becomes smaller and less detail can be shown.

• Large-scale maps and plans at 1:2500 and larger
• Survey and boundary sketches
• Graphic symbols and special signs for technical drafting
• Maps and plans smaller than 1:2500 are outside the scope