NIGHTTIME LEGIBILITY OF GUIDE SIGNS

Nighttime legend, panel, and surrounding brightness were measured on 120 large guide signs throughout New York State to evaluate their legibility under headlight illumination. Panel and legend condition, background brightness, and sign legibility were rated subjectively, and sign age, material type, and sign position were recorded. Brightness was highly variable, and generally below that required for optimum legibility.

• Corporate Authors:

  New York State Department of Transportation

  Engineering Research and Development Bureau, 1220 Washington Avenue
  Albany, NY  United States  12232
• Authors:
  • Hahn, K C
  • McNaught, E D
  • Bryden, J E
• Publication Date: 1977-8

Media Info

• Features: References;
• Pagination: 64 p.

Subject/Index Terms

• TRT Terms: Brightness; Headlamps; Legibility; Night visibility; Night vision; Sign supports; Signs; Symbols; Traffic control devices; Traffic signs; Visibility
• Uncontrolled Terms: Background (Traffic signs); Sign legend
• Old TRIS Terms: Sign structures
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00172511
• Record Type: Publication
• Report/Paper Numbers: RR 50, HS-023 568
• Files: TRIS, STATEDOT
• Created Date: May 31 2003 12:00AM