Abstract
LED technology is being widely adopted for use in sustainable traffic signal management. However, the useful life and luminosity characteristics have not been sufficiently studied to provide a life cycle analysis of the technology from a "green" perspective. LED traffic signals fail when their luminous intensity falls below a pre-specified threshold, posing a danger to traffic. 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.
| Original language | American English |
|---|---|
| Journal | Proceedings of the 31st Annual National Conference of the American Society for Engineering Management (2010, Fayetteville, AR) |
| State | Published - Oct 1 2010 |
Keywords
- Department of Transportation (MODOT)
- Life Expectancy
- Light-Emitting Diode (LED)
- Missouri
- Replacement Schedules
- Sustainability
- Traffic Signal
- Engineering Managers
- Life Cycle Analysisl
- Missouris
- Schedule Development
- Standards
Disciplines
- Operations Research, Systems Engineering and Industrial Engineering
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