PROSPECTS FOR IMPROVING VISION ON THE ROADS AT NIGHT

STREET LIGHTING AND HEADLIGHTS ARE EXAMINED IN RELATION TO NIGHT VISIBILITY. WITH THE ADVENT OF NEW CODES OF PRACTICE FOR STREET LIGHTING AND THE USE OF BRIGHTER SOURCES MOUNTED ON HIGHER COLUMNS WITH BETTER CUT-OFF, MORE USE IS NOW MADE OF DIFFUSE REFLECTION WITH LESS RELIANCE ON SPECULAR REFLECTIONS. THE GLARE WHICH WAS SUCH A PROMINENT FEATURE OF OLDER INSTALLATIONS HAS BEEN REDUCED BY IMPROVED LANTERN DESIGN. DIPPED BEAMS AND AIM OF HEADLAMPS ARE DISCUSSED. SEVERAL METHODS OF AIM CORRECTION FOR CHANGES IN LOADING ARE LISTED. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0556056X
• Supplemental Notes:
  • No 13, Figs, REFS
• Corporate Authors:

  N/A

  ,   United States 
• Authors:
  • Moore, R L
  • Christie, A W
• Publication Date: 1970-1

Media Info

• Serial:
  • Police Research Bulletin
  • Publisher: Home Office, Police Research Service Branch
  • ISSN: 0556-056X

Subject/Index Terms

• TRT Terms: Diffusion (Optics); Glare; Headlamps; Improvements; Light; Lighting equipment; Night visibility; Reflection; Street lighting
• Old TRIS Terms: Diffuse reflection
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00221595
• Record Type: Publication
• Source Agency: Nat Safety Council Safety Res Info Serv
• Files: TRIS
• Created Date: Apr 10 2003 12:00AM