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原文传递 Evaluation of Snowplowable Reflective Pavement Markers for Effective Delineation. Final rept.

题名：	Evaluation of Snowplowable Reflective Pavement Markers for Effective Delineation. Final rept.
作者：	DOERR, G. L.; HENRICHS, S.; WALKER, R.
关键词：	Pavement-markings; Retroreflectors-.;Highway-maintenance; North-Dakota; Road-materials; Traffic-safety; Climatic-conditions; Retroflectivity-; Snowplowable-; Night-visibility; Performance-evaluation; Reflectance-; Weather-resistance.
摘要：	There are many roadway segments in North Dakota that include sharp curves or unlighted areas that require caution when encountering them. Nighttime conditions sometimes make it difficult to identify markings, especially if the marking system is worn. Due to climatic conditions, pavement marking paints can wear off completely before maintenance forces can reapply the marking. An alternative, to supplement the primary pavement marking system, is to install snowplowable reflective pavement markers. A snowplowable reflective pavement marker would provide additional delineation when the primary marking system is reliable and provide a backup system during times when the primary marking system is unreliable. It is also imperative that the raised pavement marker be resistant to the effects of snowplow activity.
报告类型：	科技报告