Snow on LED Traffic Signals

Snow and ice buildup on traffic lights during storms is a safety issue for vehicular traffic. Attempts to mitigate this issue have met with limited success. Replacement of existing traffic lights with lower power light emitting diode (LED) lights have made the problem even more of an issue, due to reduction in the amount of heat available to melt ice and snow. The Colorado Department of Transportation (CDOT) seeks a solution that will maintain the low power consumption of the LED lights, but not require applications of coatings or cleaning of ice and snow during storms.

Language

• English

Project

• Status: Completed
• Funding: $150000.00
• Contract Numbers:

  40.06

• Sponsor Organizations:

  Colorado Department of Transportation

  4201 East Arkansas Avenue
  Denver, CO  United States  80222
• Project Managers:

  Reeves, David

• Performing Organizations:

  University of Colorado, Denver

  Denver, CO  United States 
• Principal Investigators:

  Rorrer, Ronald

• Start Date: 20130805
• Expected Completion Date: 0
• Actual Completion Date: 20190801
• Source Data: RiP Project 36220

Subject/Index Terms

• TRT Terms: Energy consumption; Heat; Ice; Light emitting diodes; Melting; Snow; Traffic signals
• Geographic Terms: Colorado
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 01517462
• Record Type: Research project
• Source Agency: Colorado Department of Transportation
• Contract Numbers: 40.06
• Files: RIP, STATEDOT
• Created Date: Mar 9 2014 1:00AM