Pavement Marking Retroreflectivity

Status:  Complete
Report Date:  07/26/2024

Summary:

To reduce highway fatalities after dark, the U.S. Federal Highway Administration (FHWA) issued new requirements for pavement marking “retroreflectivity” (the measure to which pavement markings reflect headlamp light back to its source). This standard has been incorporated into the Minnesota Manual on Uniform Traffic Control Devices (MN MUTCD) and applies to all agencies that manage Minnesota roadways. The Local Road Research Board (LRRB) is providing an easy-to-understand review of what agencies need to know to comply with new standards. This includes: 1) Understanding the basics of retroreflectivity. 2) Review and summary of current requirements, deadlines, and procedures. 3) Exploration of a range of tools, methods, and techniques to achieve retroreflectivity goals.

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