BACKGROUND AND OBJECTIVES OF THE U.S. STANDARD FOR COLORS OF SIGNAL LIGHTS

THE U. S. STANDARD FOR COLORS OF SIGNAL LIGHTS EMBODIES AN ATTEMPT TO ELIMINATE SOME OF INCONSISTENCIES BETWEEN DIFFERENT SPECIFICATIONS FOR SIGNAL-LIGHT COLORS NOW USED IN THE UNITED STATES ON THE BASIS OF THE RECOMMENDATIONS OF THE INTERNATIONAL COMMISSION ON ILLUMINATION. DIFFERENCES IN SERVICE CONDITIONS JUSTIFY SOME OF THE DIFFERENCES AMONG THESE SPECIFICATIONS, BUT NOT ALL OF THEM. THE REPORT ALSO EXPLAINS THE DIFFERENT PURPOSES SERVED BY THE SEVERAL PARTS OF THE STANDARDS AND THE RELATIONSHIP OF BASIC DEFINITIONS, LIMIT STANDARDS, AND PROCUREMENT SPECIFICATIONS. /AUTHOR/

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  • Supplemental Notes:
    • No 226, pp 7 - 13, 3 FIG, 4 REF 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:
    • Breckenridge, F C
  • Publication Date: 1959

Media Info

  • Media Type: Digital/other
  • Pagination: 7p
  • Monograph Title: Night visibility 1959
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00220287
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Sep 16 1994 12:00AM