The physiological glare thresholds (defined as the logarithm of the ratio at threshold between illuminances of glare source and target background) of 148 subjexts from 5 to 91 years of age were measured in a Wolf glare tester. The data can be represented by a power function: (physiological glare threshold) = 0.00003 (age) to the 2.4 power + 2.4. When tested in a realistic driving simulator, the headlight glare resistances (defined as the logarithm of the ratio of mean "acceptable" glare illuminance to fixed ambient illuminance) of 30 in terms of a hypothesis: (headlight glare resistance) = (physilogical 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. /Author/

  • Supplemental Notes:
    • Presented at the 22nd Annual Meeting, October 16-19, 1978.
  • Corporate Authors:

    Human Factors Society

    1134 Montana
    Santa Monica, CA  United States  90403
  • Authors:
    • Pulling, N H
    • Wolf, E
    • Sturgis, S P
    • Vaillancourt, D R
  • Publication Date: 1978-10

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00190117
  • Record Type: Publication
  • Source Agency: National Safety Council Safety Research Info Serv
  • Report/Paper Numbers: Proceeding
  • Contract Numbers: DOT-HS-7-01724
  • Files: TRIS, USDOT
  • Created Date: May 26 1979 12:00AM