详情

Optimization of Bead Application for Painted Pavement Markings Maintenance Application

项目名称：	Optimization of Bead Application for Painted Pavement Markings Maintenance Application
摘要：	NHDOT forces perform maintenance applications of painted pavement markings to roadways each year. Retroreflective beads are applied as part of the paint application for nighttime reflectivity. The application rate of beads can vary. Too little and the retroreflectivity wears away before annual re-application; too much and the beads are wasted. This study will research the optimum application rate such that minimum retroreflectivity is achieved for the life of the painted line (12-16 month) without unnecessary expense for beads. The major tasks are outlined as follows: � Establish a test deck with a series of painted lines, each with a different application rate of beads (6.0 pound/gallon to 9.0 pound/gal at 1.0 or 0.5 pound increments) � Subject the test deck to traffic and winter maintenance. � Test retroreflectivity regularly (2 month intervals) � Evaluate reduction of retroreflectivity versus time and determine which application rate allowed minimum retroreflectivity to be maintained for 12 months and 16 months Application rates for future maintenance will be adjusted to the optimum rate.
状态：	Proposed
资金：	$50,000
资助组织：	New Hampshire Department of Transportation
管理组织：	New Hampshire Department of Transportation
项目负责人：	Nash, Deirdre
执行机构：	New Hampshire Department of Transportation
主要研究人员：	Baronas, Lee
开始时间：	20181101
预计完成日期：	20201231
实际结束时间：	0