"Fiberoptic variable message signs" : Ladd Canyon - Drinking Fountain Grade Section , Old Oregon Trail Highway (Interstate 84) : final report.
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1995-02-01
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Alternative Title:"Fiberoptic variable message signs" : Ladd Canyon - Drinking Fountain Grade Section , Old Oregon Trail Highway (I-84);Fiberoptic variable message signs : Ladd Canyon - Drinking Fountain Grade Section , Old Oregon Trail Highway (I-84).;
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Abstract:The SYLVIA fiberoptic variable message signs (VMS) were installed on the Old Oregon Trail Highway (I-84) at milepost 263.4 near La Grande and at milepost 286.7 near North Powder. The purpose of the signs is to warn motorists of fog, winter blizzard conditions and high wind conditions.
The evaluation of the SYLVIA fiberoptic VMS was conducted by the Oregon Department of Transportation staff as part of an Experimental Features Program research project. The issues of reliability and ease of operation were investigated. These signs have functioned well, overall. Legibility of the signsare excellent in the conditions evaluated, the maintenance requirements have been minor, the cost of operation has been reasonable, and driver compliance has been excellent. An additional benefit is that the length of time required to close the highway is significantly lower, since the signs aid maintenance personnel with informing drivers of the closure.
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