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Research notes : light tube leads the way.
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2000-09-01
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Alternative Title:Light tube leads the way.
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Abstract:Recently, Oregon Department of Transportation (ODOT) tested a traffic control device designed to improve delineation of curves through highway construction projects. The 3M™ Lighted Guidance Tube (LGT) was tested on the Eddyville-Cline Hill Section project early this year.
The LGT is a flexible polycarbonate tube with a special optical coating. The tube comes in 20-foot sections. The LGT was attached to the top of the concrete barrier marking the detour. It was illuminated with white light that could be seen by traffic moving in both directions. The light sources are 50 watt halogen lamps attached to the ends of 3 to 5 sections of the tube. For other applications, the light tube can be configured to be seen in only one direction, and yellow lamps can be used if desired.
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