MEASUREMENT STANDARDS FOR RETROREFLECTIVE MATERIALS USED ON ROAD SIGNS

Different standards and recommendations on the angular requirements for measuring the coefficient of luminous intensity values of retroreflective materials used in road signs, are analyzed. In spite of the many different types of measurement required in the CIE recommendation and in the US Standards, it is found that just four are enough to satisfy practical needs. (a) /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 

  Her Majesty Stationary Office

  49 High Holborn
  London WC1V 6HB,   England 
• Authors:
  • Lozano, R D
• Publication Date: 1976

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 107-112
• Serial:
  • Lighting Research and Technology
  • Volume: 8
  • Issue Number: 2
  • Publisher: Sage Publications Limited
  • ISSN: 1477-1535
  • Serial URL: http://lrt.sagepub.com/

Subject/Index Terms

• TRT Terms: Angularity; Fluorescence; Luminosity factor; Reflectorized materials; Retroreflectors; Standards; Traffic signs
• Old TRIS Terms: Luminosity
• ITRD Terms: 5945: Angularity; 6785: Fluorescence; 4523: Reflectorized material; 187: Specification (standard); 553: Traffic sign
• Subject Areas: Geotechnology; Highways; Materials; Safety and Human Factors; I85: Safety Devices used in Transport Infrastructure;

Filing Info

• Accession Number: 00142742
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS
• Created Date: Oct 29 1977 12:00AM