The physiological glare thresholds (defined as the logarithm of the ratio at threshold between illuminances of glare source and target background) of 148 subjects from 5 to 91 years of age were measured in a Wolf glare tester. The data indicate that glare resistance declines at an accelerating rate with age. When tested in a realistic driving simulator, the headlight glare resistance (defined as the logarithm of the ratio of mean "acceptable" glare illuminance to fixed ambient illuminance) of 30 of these subjects was also found to decline with age. These results are discussed in terms of a hypothesis: (headlight glare resistance) = (physiological glare threshold) + (subjective glare tolerance). All these functions have large interpersonal variation. Field measurements are provided on relevant glare ratios in typical night driving situations.

  • Availability:
  • Corporate Authors:

    Human Factors Society

    Johns Hopkins University Press
    Baltimore, MD  United States  21218
  • Authors:
    • Pulling, N H
    • Wolf, E
    • Sturgis, S P
    • Vaillancourt, D R
    • Dolliver, J J
  • Publication Date: 1980-2

Media Info

  • Features: References;
  • Pagination: p. 103-112
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00322306
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: HS-028 861
  • Files: HSL, TRIS
  • Created Date: Jan 30 1985 12:00AM