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Title: HEADLIGHT GLARE VS MEDIAN WIDTH
Accession Number: 00220223
Record Type: Component
Abstract: A DETERMINATION IS MADE OF THE MEDIAN WIDTH THAT WILL BEST AVOID BLINDING GLARE FROM HIGH-BEAM HEADLIGHTS OF ONCOMING AUTOMOBILES. TEST A WAS CARRIED OUT ON A GRAVELED AIRPLANE RUNWAY WITH SMALL VEGETATION GROWING THEREON. IT WAS FOUND, FOR EXAMPLE, THAT AT 50 MPH THE SAFE STOPPING DISTANCE IS 350 FEET AND THE MINIMUM SAFE MEDIAN WIDTH IS 30 TO 40 FEET. TO CHECK THE RESULTS OBTAINED IN TEST A, A SOURCE INTENSITY CURVE WITH CANDLEPOWER AS A FUNCTION OF MEDIAN WIDTH AND DISTANCE FROM THE SOURCE WAS PREPARED. IT WAS CONCLUDED THAT FURTHER STUDIES ARE NEEDED.
Supplemental Notes: No 298, pp 51-55, 3 FIG, 4 TAB, 1 APP. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
Monograph Title: Monograph Accession #: 01410681
Authors: Fries, John RRoss, L JPagination: 5p
Publication Date: 1961
Serial: Conference:
40th Annual Meeting of the Highway Research Board
Location:
Washington DC, United States Media Type: Digital/other
TRT Terms: Uncontrolled Terms: Old TRIS Terms: Subject Areas: Highways; Safety and Human Factors
Files: TRIS, TRB
Created Date: Aug 12 1994 12:00AM
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