RECOVERY TIME AFTER GLARE: An experimental investigation of glare after-effect under night driving conditions |
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Authors: | Gunnar Johansson Chris Ottander |
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Affiliation: | Department of Psychology, University of Uppsala, Sweden |
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Abstract: | Preliminary experiments suggest that the changes in adaptation level due to glaring light in a night traffic meeting situation give no practically important deterioration of visibility. To obtain a more complete answer, one experiment was done in a 'real' night driving situation, and two experiments were carried out using a glare simulator, aimed at quantifying the change in the level of adaptation in terms of redetection time of a target made invisible due to glare. The effect of three factors were studied: duration of glare, maximum illuminance of glare, and contrast ratio between background and target. The preliminary suggestions were fully confirmed. |
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