DISCOMFORT GLARE FROM AUTOMOBILE HEADLIGHTS
Three studies are described concerning discomfort glare arising from automotive headlamps. Two issues were of principle concern, the so-called "range effect", and the relationship between laboratory and field findings concerning glare. The first study was conducted in a laboratory and was designed to evaluate the range effect and subject age. A significant range effect was found. Older subjects were more sensitive to glare than young subjects, but the effects were small except at very high glare levels. The second study compared glare ratings using the 9-interval DeBoer scale and a simple 3-interval scale. Results are described. The third study compared ratings predicted based on laboratory data with those obtained in a full-scale vehicle meeting situation. The latter ratings were much more comfortable than predicted from laboratory data, except at very high intensities. A significant range effect was found as well.
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Availability:
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Corporate Authors:
Illuminating Engineering Society
120 Wall Street, 17th Floor
New York, NY United States 10005-4001 -
Authors:
- Olson, P L
- Sivak, M
- Publication Date: 1984-4
Media Info
- Features: References;
- Pagination: p. 296-303
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Serial:
- Illuminating Engineering Society, Journal of
- Volume: 13
- Issue Number: 3
- Publisher: Illuminating Engineering Society
- ISSN: 0099-4480
Subject/Index Terms
- TRT Terms: Accuracy; Age; Automobiles; Comfort; Forecasting; Glare; Headlamps; Laboratory studies; Lighting systems; Sensitivity; Simulation; Street lighting; Vehicle range; Visibility
- Uncontrolled Terms: Discomfort glare
- Old TRIS Terms: Automotive headlamps; Deboer scale; Electric lighting; Glare effects; Range effect
- Subject Areas: Highways; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety;
Filing Info
- Accession Number: 00396042
- Record Type: Publication
- Source Agency: Engineering Index
- Files: TRIS
- Created Date: Nov 30 1985 12:00AM