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Title: ULTRAVIOLET HEADLAMP TECHNOLOGY FOR NIGHTTIME ENHANCEMENT OF ROADWAY MARKINGS AND PEDESTRIANS
Accession Number: 00757477
Record Type: Component
Record URL: Availability: Transportation Research Board Business Office 500 Fifth Street, NW Find a library where document is available Abstract: Motorists driving at night are two to three times more likely to be involved in a crash than during the day. Although, about half of the motor vehicle deaths occur at night, death rates based on miles driven are about four times higher at night than during the day. Nighttime driving also frustrates a large number of people, the majority of which are seniors. There is an effort under way to evaluate the use of supplemental ultraviolet (UV) automobile headlights to increase nighttime visibility. Research conducted in Sweden has shown very promising results, and a preliminary field research effort recently completed in the United States found that the visibility of pavement markings increased 25% with UV, and subjects generally favored its use. An extensive field study was conducted to determine the conditions under which driver performance could be improved with fluorescent traffic control devices and auxiliary UV headlights. Several static tests were done to evaluate fluorescent pavement markings, post-mounted delineators, and various pedestrian scenes under two headlight conditions (low beam only and low beam with UV). Dynamic tests included a subjective evaluation of two headlamp conditions and a performance test in which subjects drove an instrumented vehicle. The results of the field study indicated that pavement markings could be observed 30% further, and pedestrians could be observed over 90% further with the addition of UV. Subjects consistently evaluated the use of UV headlamps as beneficial.
Supplemental Notes: This paper appears in Transportation Research Record No. 1636, Bicycle and Pedestrian Research 1998.
Language: English
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Authors: Turner, DNitzburg, MKnoblauch, RPagination: p. 124-131
Publication Date: 1998
Serial: ISBN: 0309065089
Features: Figures
(3)
; References
(8)
; Tables
(3)
TRT Terms: Uncontrolled Terms: Geographic Terms: Old TRIS Terms: Subject Areas: Highways; Research; Safety and Human Factors; Vehicles and Equipment; I91: Vehicle Design and Safety
Files: TRIS, TRB, ATRI
Created Date: Dec 7 1998 12:00AM
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