Research notes : time to clean up those barrier markers.
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1999-07-01
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Alternative Title:Time to clean up those barrier markers.
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Abstract:In February 1997, ODOT Construction installed seven types of barrier markers to investigate short-term performance. The barrier markers are typically installed on the top of concrete barriers or other delineators to visually enhance the alignment. The markers were installed on a construction site in Salem, along the northbound right shoulder of I-5 near Silverton Road, as shown below.
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