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Detection Distances in the Presence of Glare
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English
Abstract
Glare reflected from rearview mirrors degrades the ability of the driver to detect objects in the forward field. Mirrors are now available which reduce this glare. This study looked at the effect of those mirrors on the driver's ability to detect a pedestrian-size target along the edge of the road; specifically, the distance at which drivers were able to detect the target. Detection distance was measured for two glare levels and two reflectivity levels: the standard reflectivity level and the reflectivity level designed for glare reduction. The results showed a loss in detection distance when glare was present. Higher glare levels resulted in larger losses. Use of the lower reflectivity level was able to reduce glare to the point where the loss in detection distance was almost eliminated.
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Authors
Citation
Helder, D., "Detection Distances in the Presence of Glare," SAE Technical Paper 933066, 1993, https://doi.org/10.4271/933066.Also In
References
- Mortimer, R. Olson, P. “Evaluation of Meeting Beams by Field Tests and Computer Simulation” Dec 1974
- Graf, C. Krebs, M. “Headlight Factors and Nighttime Vision” DOT HS-802 102 Nov 1976
- Olson, P. Sivak, M. “Improved Low Beam Photometrics” DOT HS-806 488 Mar 1983
- Olson, P. Sivak, M. “Glare from Automobile Rear-Vision Mirrors” Human Factors 26 3 1984