Life expectancy evaluation and development of a replacement schedule for LED traffic signals.
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2011-03-01
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OCLC Number:716062985
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Edition:Final report.
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NTL Classification:NTL-OPERATIONS AND TRAFFIC CONTROLS-Traffic Control Devices
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Abstract: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.
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