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:
  • 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

Media Info

Subject/Index Terms

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