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Low-Cost Warning Device Industry Assessment [Research Results]
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2011-12-01
[PDF-394.78 KB]
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Edition:Research results.
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Abstract:Virtually all of the grade crossing train detection and warning systems in the United States use a variant of the track circuit technology developed over a century ago. Track circuits have evolved through the years, but the design and principles of operation have changed little. Although highly reliable, track-circuit–based train detection systems are costly to install and maintain. Systems that leverage low-cost, nontraditional technologies are an attractive alternative at low-usage grade crossings. The challenge for the railroad industry is to develop systems that are low in cost and safe.
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