AN INVESTIGATION OF THE USE OF EXPANDED METAL MESH AS AN ANTI-GLARE SCREEN
AN ANTI-GLARE SCREEN, A HEADLIGHT BARRIER FENCE CONSTRUCTED OF EXPANDED METAL MESH MOUNTED ON TOP OF THE MEDIAN BARRIER IS RECOMMENDED AS A SOLUTION TO THE HEADLIGHT GLARE PROBLEM ON DIVIDED HIGHWAYS WITH MEDIANS OF INSUFFICIENT WIDTH. THIS RESEARCH PROJECT WAS DESIGNED TO /1/ FORMULATE PRELIMINARY ANTI-GLARE SCREEN DESIGN CRITERIA, /2/ TEST THESE CRITERIA BY MEANS OF TRIAL INSTALLATIONS, AND /3/ DETERMINE THE ECONOMICS OR FEASIBILITY OF ANTI-GLARE SCREEN INSTALLATION. IT IS CONCLUDED THAT THE INSTALLATION OF THIS ANTI-GLARE SCREEN AT A HEIGHT OF 4 FT 1 IN ABOVE THE INSIDE PAVEMENT EDGE IS A PRACTICAL WAY OF EFFECTIVELY REDUCING HEADLIGHT GLARE. STEEL IS A SUPERIOR MATERIAL FOR AN EXPANDED METAL MESH ANTI-GLARE SCREEN. THE COMBINATION OF MEDIAN BARRIER AND ANTI-GLARE SCREEN HELPS PREVENT FREQUENT AND EXCESSIVE DAMAGE. ANTI-GLARE SCREEN IS NOT PRACTICAL ALONG SHARP CURVES HAVING NARROW MEDIAN BECAUSE TOO MUCH DAMAGE RESULTS FROM TRUCK OVERHANG. THE ANTI-GLARE SCREEN INSTALLATION APPEARS TO REDUCE TRAFFIC ACCIDENT FREQUENCY AND DOES NOT ADVERSELY AFFECT TRAFFIC FLOW CHARACTERISTICS.
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Supplemental Notes:
- Paper sponsored by Committee on Operational Effects of Geometrics. 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.
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Authors:
- Coleman, Robert R
- Sacks, William L
- Publication Date: 1967
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 68-73
- Monograph Title: Night visibility
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Serial:
- Highway Research Record
- Issue Number: 179
- Publisher: Highway Research Board
Subject/Index Terms
- TRT Terms: Crash rates; Design; Divided highways; Economics; Glare; Headlamps; Median barriers; Reduction (Chemistry); Screens; Steel wire; Traffic crashes; Wire mesh
- Uncontrolled Terms: Design criteria
- Old TRIS Terms: Reduction
- Subject Areas: Design; Economics; Highways; Safety and Human Factors;
Filing Info
- Accession Number: 00219924
- Record Type: Publication
- Report/Paper Numbers: HS-000 708
- Files: TRIS, TRB
- Created Date: Aug 23 1994 12:00AM