Pavement Marking RetroreflectivityStatus: CompleteReport 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. Final Deliverables: Video #2024RIC05 Related Materials: Presentation: Methods for Maintaining Pavement Marking Retroreflectivity - (Presentation) General Overview of Webinar for Maintaining Pavement Marking Retroreflectivity - (Brochure/Handout) Pavement Marking Retroreflectivity Inspection Methods Frequently Asked Questions - (Brochure/Handout) Pavement Marking Retroreflectivity Inspection Methods Summary - (Brochure/Handout) Related Research: Methods for Maintaining Pavement Marking Retroreflectivity