DISCOMFORT GLARE: CONCENTRATED SOURCES--PARAMETRIC STUDY OF ANGULARLY SMALL SOURCES

An experiment was carried out to determine the mathematical relationship of discomfort glare, and size and displacement of glare source and background luminance. A relationship for the borderline between comfort and discomfort (BCD) was found; it is a function of three parameters: the background luminance, the source angle from the line-of-sight, and the source size. It was also found that the individual differences among observers were very large and of equal importance in predictiveness to the physical parameters. The overall predictability of BCD from physical and subjective parameters was substantial, and the stability of the parameters under cross-validation was considerable, indicating adequate experimental control and statistical analysis. /Author/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00994480
• Corporate Authors:

  Illuminating Engineering Society

  120 Wall Street, 17th Floor
  New York, NY  United States  10005-4001
• Authors:
  • Bennett, C A
• Publication Date: 1977-10

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: p. 2-15
• Serial:
  • Illuminating Engineering Society, Journal of
  • Publisher: Illuminating Engineering Society
  • ISSN: 0099-4480

Subject/Index Terms

• TRT Terms: Comfort; Forecasting; Glare; Highway safety; Line of sight; Statistical analysis
• Uncontrolled Terms: Sources
• Old TRIS Terms: Backgrounds
• Subject Areas: Data and Information Technology; Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00165484
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 23 1977 12:00AM