Bright Future: More Reliable Obstruction Lighting

Improvements in obstruction lighting equipment are emphasized in this article. Technology advances have led to greater assurance that obstruction lighting, which is placed on top of bridge towers and places on other tall structures that are affected by hazardous or extreme weather conditions, will perform properly and be easier to maintain. The author notes that the development of new applications for light-emitting diodes (LEDs) has been key in bridge lighting improvements. Compared to more conventional lighting methods (e.g., incandescent, neon, fluorescent), LEDs consume less power (even allowing for short-term battery power support during power failures), have a longer service life and lower maintenance costs. One critical area in the development of LED technology is meeting the requirements of the International Civil Aviation Organization (ICAO). Among ICAO requirements is ensuring that a thin light beam safely spreads away from tall structures; that light beam distraction be minimized for ground level drivers, residents, and pedestrians; and that above the structure no aircraft should be able to clearly see the beam, except at a height where evasive action is needed. A detailed example of such LED technology improvements is presented in a new product from Dialight – the D264 medium-intensity red beacon.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Authors:
  • Gulliver, James
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Photos;
• Pagination: p 40
• Serial:
  • Bridge Design & Engineering
  • Issue Number: 45
  • Publisher: Hemming Information Services
  • ISSN: 1359-7493
  • Serial URL: http://www.bridgeweb.com/Default.aspx

Subject/Index Terms

• TRT Terms: Aircraft; Beacons; Bridge towers; Costs; Distraction; Drivers; Improvements; Light emitting diodes; Light transmission; Lighting; Lighting equipment; Maintenance; Obstruction lights; Pedestrians; Performance; Product development; Residents; Safety; Service life; Structures; Technological innovations; Technology; Weather conditions
• Identifier Terms: International Civil Aviation Organization
• Uncontrolled Terms: Requirements
• Subject Areas: Aviation; Bridges and other structures; Design; Finance; Highways; Maintenance and Preservation; Pedestrians and Bicyclists; Safety and Human Factors; Vehicles and Equipment; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01046513
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 25 2007 1:45PM