SOME SOLUTIONS OF VISIBILITY AND LEGIBILITY PROBLEMS IN CHANGEABLE SPEED COMMAND SIGNS

THIS REPORT DETAILS THE UNUSUAL, AS WELL AS THE USUAL, DESIGN CRITERIA SPECIFIED FOR A DISCRETE-BULB, MATRIX, SPEED COMMAND SIGN. LABORATORY TESTS AND VARIOUS RESULTS ARE DISCUSSED. THE INTERACTION EFFECTS FOUND AMONG CRITERIA MEETING DESIGN SPECIFICATIONS ARE POINTED OUT. THE SPEED COMMAND SIGN IN USE WITH THE TRAFFIC PACER SYSTEM IN WARREN, MICH., IS THE END PRODUCT OF THE RESEARCH. SPECIFICATIONS, SKETCHES, AND PHOTOGRAPHS, AS WELL AS RESEARCH DATA, ARE INCLUDED. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrbbulletin/330/330-007.pdf
• Supplemental Notes:
  • 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:
  • Bauer, Herbert J
• Conference:
  • 41st Annual Meeting of the Highway Research Board
  • Location: Washington DC, United States
  • Date: 1962-1-8 to 1962-1-12
• Publication Date: 1962

Media Info

• Media Type: Digital/other
• Features: Figures; Tables;
• Pagination: pp 60-68
• Monograph Title: Driver characteristics
• Serial:
  • Highway Research Board Bulletin
  • Issue Number: 330
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Command guidance; Laboratory tests; Legibility; Speed; Traffic signs; Visibility
• Uncontrolled Terms: Change
• Old TRIS Terms: Command systems
• Subject Areas: Highways; Operations and Traffic Management;

Filing Info

• Accession Number: 00225235
• Record Type: Publication
• Files: TRIS, TRB, ATRI
• Created Date: Aug 12 1994 12:00AM