THE EFFECT OF SELECTED DISPLAY VARIABLES UPON DYNAMIC VISUAL ACUITY

TWO EXPERIMENTS WERE CONDUCTED TO MEASURE THE EFFECTS OF LINEAR VELOCITY, TOTAL VIEWING TIME, AND DISPLAY WIDTH UPON DYNAMIC VISUAL ACUITY (DVA). LINEAR VELOCITY AND VIEWING TIME WERE FOUND TO HAVE SIGNIFICANT EFFECTS UPON DVA. INCREASES IN VIEWING TIME OFTEN COMPENSATED FOR THE DECREMENT CAUSED BY HIGH TARGET VELOCITY (250 FT/MIN. OR MORE). FOR MOST INSPECTIONS, A VIEWING TIME OF 0.5 SECONDS OR MORE SHOULD BE PROVIDED. TO DETECT SMALL TARGETS, .19 TO .25 MM, A LINEAR TARGET VELOCITY OF 50 FT/MIN. IS RECOMMENDED. INDUSTRIAL INSPECTORS DID NOT APPEAR TO DIFFER SIGNIFICANTLY FROM LABORATORY SUBJECTS IN DYNAMIC VISUAL ACUITY. A LINEAR MODEL RELATING LOG TO THE BASE 10 DVA TO TARGET VELOCITY AND VIEWING TIME IS HYPOTHESIZED. /HSL/

• Corporate Authors:

  Oklahoma State University, Stillwater

  Stillwater, OK  United States  74078
• Authors:
  • Adams, S K
• Publication Date: 1971

Media Info

• Features: References;
• Pagination: 24 p.

Subject/Index Terms

• TRT Terms: Information display systems; Mathematical models; Visual perception
• Uncontrolled Terms: Models
• Old TRIS Terms: Displays
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00222202
• Record Type: Publication
• Source Agency: Highway Safety Literature
• Files: TRIS
• Created Date: Jul 8 1973 12:00AM