UNDERSTRUCTURE LIGHTING

UNDERSTRUCTURE LIGHTING IS DISTINGUISHED FROM TUNNEL LIGHTING IN THAT DAYTIME ILLUMINATION IS NOT REQUIRED. TYPICAL EXAMPLES OF STRUCTURES THAT REQUIRE SUCH LIGHTING ARE OVERPASSES WITH SUBSTANDARD VERTICAL OR HORIZONTAL CLEARANCES, COLUMNS OR ABUTMENTS PLACED VERY CLOSE TO THE TRAVELLED WAY, OR CONSIDERABLE LENGTHS UNFAVORABLY PLACED WITH RESPECT TO ADJACENT LIGHTING SYSTEMS. THESE PROBLEMS ARE DISCUSSED IN RELATION TO PLACEMENT OF LUMINAIRES AND UNDERSTRUCTURE LIGHTING AND TO PROBLEMS OF STRUCTURAL IDENTIFICATION BY THE DRIVER.

• Authors:
  • Young, S H
• Publication Date: 1973-4

Media Info

• Features: Figures;
• Pagination: p. 29-30
• Serial:
  • Lighting Design and Application
  • Volume: 3
  • Issue Number: 4
  • Publisher: Illuminating Engineering Society

Subject/Index Terms

• TRT Terms: Lighting; Underpasses
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00222208
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 12 1973 12:00AM