Evaluation of Raised Pavement Markers

Raised pavement markers (RPMs) are delineation devices used to improve preview distances and guidance for drivers in inclement weather and low-light conditions. Currently, RPMs are installed along all centerlines and skip lines, regardless of traffic volume, roadway geometry, and roadway classification in New Jersey. This study is conducted in three stages. First, this research will evaluate the use and effect of RPMs given different traffic and roadway geometry factors. Second, this research will identify promising modifications or alternatives to the current use of RPMs. The study will evaluate each alternative’s respective merits and costs; weigh their benefits and costs through consistent, measurable criteria; and optimize their usage. Third, this research will discuss the installation, monitoring, and maintenance of RPMs and their alternatives for maximizing their life cycle net benefits.