Tactile Political Maps: Two Experimental Designs

Examines the design of tactile political maps by constructing two experimental maps having either a broad raised line or a broad incised line. Performance on these two maps was compared with performance on a thin raised line map (control), which is typically found in braille books. The subjects were 72 braille readers in grades 4-12. Performance on the broad raised line map was superior to performance on the control map. Performance on the broad incised line map did not differ from performance on the control map.