LED Traffic Signal Replacement Schedules: Facilitating Smooth Freight Flows

This research details a field study of LED traffic signals in Missouri and develops a replacement schedule based on key findings. Rates of degradation were statistically analyzed using Analysis of Variance (ANOVA). Results of this research will provide a methodology for engineering managers in state departments of transportation and local communities in identifying best practices and replacement standards for LED traffic signal technology. These findings will facilitate smooth freight flows through the use of more efficient technologies.

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• Record URL:
  https://rosap.ntl.bts.gov/view/dot/25392
• Supplemental Notes:
  • This document is disseminated under the sponsorship of the Department of Transportation University Transportation Centers Program. Date on cover page is 2012. Dates on title page and technical report documentation page is November, 2011.
• Corporate Authors:

  Mid-America Transportation Center

  University of Nebraska-Lincoln
  2200 Vine Street, PO Box 830851
  Lincoln, NE  United States  68583-0851

  Research and Innovative Technology Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Long, Suzanna
  • Qin, Ruwen
  • Gosavi, Abhijit
  • Wu, C H
  • Ryan, Tom
  • Noll, Casey
• Publication Date: 2011-11

Language

• English

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References; Tables;
• Pagination: 96p

Subject/Index Terms

• TRT Terms: Best practices; Equipment replacement; Freight traffic; Light emitting diodes; Traffic flow; Traffic signals
• Geographic Terms: Missouri
• Subject Areas: Highways; Maintenance and Preservation; Operations and Traffic Management; Vehicles and Equipment; I60: Maintenance;

Filing Info

• Accession Number: 01458032
• Record Type: Publication
• Report/Paper Numbers: 25-1121-0001-442
• Files: UTC, NTL, TRIS, ATRI, USDOT
• Created Date: Dec 31 2012 5:54PM