00219552

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http://onlinepubs.trb.org...ubs/hrr/1965/70/70-010.pdf

THE RELATIVE VISIBILITY OF TWO TASKS WHICH ARE TYPICAL OF THOSE ENCOUNTERED IN THE NIGHTTIME DRIVING SITUATION WAS EXPLORED USING THE VISUAL TASK EVALUATOR MEASUREMENT TECHNIQUE. THE TASKS WERE ILLUMINATED WITH EITHER HIGH OR LOW HEADLIGHT BEAMS. AN OPPOSING VEHICLE WAS LOCATED AT ONE OF SEVERAL LONGITUDINAL SEPARATIONS WITH THE SAME BEAM CONFIGURATION AS THAT OF THE OBSERVERS TO SIMULATE A SINGLE APPROACHING VEHICLE AT ONE OF FOUR DIFFERENT MEDIAN WIDTHS. DISABILITY GLARE MEASUREMENTS WERE MADE WITH A PRITCHARD PHOTOMETER AND THE OVERALL VISIBILITY EVALUATED THROUGH AN ANALYTICAL PROCEDURE. /AUTHOR/

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01055083

pp 87-88

1965

Highway Research Record

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Beams; Drivers; Evaluation; Glare; Headlamps; Measurement; Night visibility; Opposing traffic; Photometers; Physical disabilities; Visibility

High

Highways; Safety and Human Factors

TRIS, TRB

Dec 12 1994 12:00AM

• A STUDY OF DEW AND FROST FORMATION ON RETRO-REFLECTORS
• EFFECTIVENESS OF SIGN BACKGROUND REFLECTORIZATION
• HEADLIGHT GLARE AND MEDIAN WIDTH
• More Light on the Headlighting Problem
• RECOVERY OF FOVEAL DARK ADAPTATION
• THE EFFECT OF GLARE IN SIMULATED NIGHT DRIVING
• TRAFFIC SIGN REQUIREMENTS. PART 1. REVIEW OF FACTORS INVOLVED, PREVIOUS STUDIES AND NEEDED RESEARCH
• VISION AT LEVELS OF NIGHT ROAD ILLUMINATION PART X. LITERATURE 1964
• VISION AT LEVELS OF NIGHT ROAD ILLUMINATION. PART IX LITERATURE 1963