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Title
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Design Of Digits
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Date
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1954
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Index Abstract
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Online
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Photo Quality
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Not Needed
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Report Number
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WADC TR 54-262
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Creator
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Crook, Mason N.
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Baxter, Frances Schulze
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Corporate Author
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Tufts College, Institute For Applied Experimental Psychology
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Laboratory
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Aero Medical Laboratory
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Extent
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69
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PB Number
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PB116521
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NTRL Accession Number
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AD050080
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Identifier
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AD0050080
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Access Rights
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Unknown
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Distribution Classification
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1
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DTIC Record Exists
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No
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Distribution Change Authority Correspondence
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AFAL LTR
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Distribution Conflict
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Fix
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Index Price
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$3.25
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Index In
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U.S. Government Research Reports, vol. 23, no. 4, p.143, 4/15/1955
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Abstract
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Design characteristics of transilluminated numerals in the Air Force-Navy Aeronautical style at very low brightness were investigated. The experimental results indicate narrow stroke widths and close spacing were unfavorable. With area held constant, the effect of height/width ratio varied from digit to digit. Configurational characteristics could not be readily improved, but a round tipped "3" in an open style was found to be superior to the standard flat-topped design. Data on confusions among both intact digits and digits with small stroke defects showed reasonable degrees of consistency. A number of special observations for which the test situation was well suited threw light on problems of experimental technique. From an analysis of the literature it was concluded that most of the contradictions on digits by different investigators can be resolved and the data fitted into a coherent pattern. This report is of value to the Air Force in that the principles given can be used as guide lines for charts and checklist designs to give better readability.
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Report Availability
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Full text available
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Date Issued
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1954-06
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Provenance
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Hunt Library, Embry-Riddle Aeronautical University
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Type
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report
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Format
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1 online resource