https://www.co.marion.or.us/PW/Engineering/Projects/Pages/RPM.aspx
Raised Pavement Markers
raised pavement markers
https://impact.ornl.gov/en/publications/development-and-evaluation-of-chip-enabled-raised-pavement-marker/
Development and Evaluation of Chip-Enabled Raised Pavement Markers for Lane Line Detection - Oak...
raised pavement markerslane linedevelopmentevaluationchip
https://www.ppg.com/en-US/traffic/products/raised-pavement-markers
Raised pavement markers | PPG's Traffic Solutions Business
These raised pavement markers enhance delineation, especially in wet conditions, reducing crash rates on highways. Made in the USA for quality assurance.
raised pavement markerstraffic solutionsppgbusiness