Graphic representation of a line symbol. A larger circle with a radius of 1 mm and a smaller one with a radius of 0.5 mm. They appear in a pattern of 1 large and 2 small circles, spaced every 2 mm.
Geometryline
Geometry DescriptionA larger circle with a radius of 1 mm and a smaller one with a radius of 0.5 mm. They appear in a pattern of 1 large and 2 small circles, spaced every 2 mm.
Verified?yes
Verification Methodsystematic study involving people with visual impairments
Verified by (count)15
Verified Technique(s)Swell paper, UV printing, 3D printing
Recommended Technique(s)Swell paper, UV printing, 3D printing
Planar Size (mm)Not applicable
Symbol Height (mm)1
Line Element Width (mm)1
Colour (HEX)#000000
Input Source Typejournal article
DOI10.1080/15230406.2024.2379456
Meaning / Map usegrass strip