HEADLIGHT GLARE RESISTANCE AND DRIVER AGE

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