The Readability of Segmented and Conventional Numerals

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Abstract
The objective of this research was to compare the readability of slanted and vertically segmented numerals with the readability of the numeral design recommended in most human engineering guides. The specific variable investigated was the accuracy with which the numbers could be read at three exposure times. Results indicated that the readability of the slanted segmented numerals was no better than that of the vertical segmented numerals. Both forms of segmented displays were significantly inferior to the conventional numerals in readability. It was concluded that segmented displays, as presently designed, should not be used where accuracy is critical and exposure time is severely limited.

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