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Most U.S. transportation agencies restripe their pavement markings based on visual inspection or a fixed schedule, instead of monitoring the retroreflectivity of their markings and restriping when the retroreflectivity drops to a specified threshold. These restriping strategies are not optimum in terms of both efficiency and economy, because on many occasions, markings are restriped before or after the end of their service life, wasting monetary resources and presenting safety issues. Explore a new tool based on advanced machine learning algorithms that can predict the future retroreflectivity of pavement markings without the need for taking regular measurements. Find out how implementation of this tool by state agencies can ensure that pavement markings are restriped timely, while minimizing the potential of under-striping and over-striping.