THE VISIBILITY, COLOUR AND MEASURING REQUIREMENTS OF ROAD SIGNS

This paper reviews the requirements for colour and scil values in the specification of retroreflective materials employed in road signs. Visibility, legibility, colour, luminance are some of the factors analysed. Based on this analysis several conclusions are given. They support the thesis that the main point is "the minimum necessary" and not "the best possible" for a specification in a standard. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00243426
• Corporate Authors:

  Illuminating Engineering Society

  York House, 199 Westminster Bridge Road
  London SE1 7UN,   England 
• Authors:
  • Lozano, R D
• Publication Date: 1980

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 206-212
• Serial:
  • Lighting Research and Technology
  • Volume: 12
  • Issue Number: 4
  • Publisher: Sage Publications Limited
  • ISSN: 1477-1535
  • Serial URL: http://lrt.sagepub.com/

Subject/Index Terms

• TRT Terms: Brightness; Color; Contrast; Design; Design standards; Legibility; Luminance; Reflectivity; Reflectorized materials; Retroreflectors; Specifications; Street lighting; Traffic signs; Visibility
• Old TRIS Terms: Traffic sign design
• ITRD Terms: 6784: Colour; 6794: Contrast (visual); 540: Legibility; 545: Lighting (street); 525: Luminance; 5926: Reflectivity; 4523: Reflectorized material; 553: Traffic sign; 6783: Visibility
• Subject Areas: Design; Highways; Operations and Traffic Management; I73: Traffic Control;

Filing Info

• Accession Number: 00335031
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Sep 16 1981 12:00AM