SIGN BRIGHTNESS IN RELATION TO POSITION, DISTANCE, AND REFLECTORIZATION

THERE IS NEED FOR QUANTITATIVE COMPARISON OF THE BRIGHTNESSES OF DIFFERENT SIGN MATERIALS IN VARIOUS SITUATIONS ON THE HIGHWAY. THIS PAPER DESCRIBES A METHOD FOR CALCULATING THE BRIGHTNESS OF A REFLECTIVE MATERIAL, FOR A GIVEN DISTANCE AND PLACEMENT. THE METHOD IS APPLIED TO INVESTIGATE THE EFFECTS OF SUCH FACTORS AS SIGN POSITION WITH RESPECT TO THE PAVEMENT, TYPE OF REFLECTIVE MATERIAL, TYPE OF HEADLAMP, TYPE OF VEHICLE, AND VERTICAL AND HORIZONTAL CURVES. RELATIONSHIPS OF THESE FACTORS TO SIGN LEGIBILITY AND THEIR IMPLICATIONS FOR SIGNING PRACTICE ARE DISCUSSED. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/146/146-003.pdf
• Supplemental Notes:
  • No 146, pp 13-44, 21 FIG, 2 TAB, 3 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.
• Authors:
  • Straub, Arthur L
  • Allen, Terrence M
• Publication Date: 1957

Media Info

• Media Type: Digital/other
• Pagination: 32p
• Monograph Title: Night visibility, 1956
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 146
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Brightness; Design; Headlamps; Legibility; Materials; Reflectorized materials; Traffic signs; Vehicle lighting
• Old TRIS Terms: Traffic sign design; Traffic sign materials
• Subject Areas: Design; Highways; Materials; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00220431
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jul 7 1994 12:00AM