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: Methods for Maintaining Pavement Marking Retroreflectivity (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 Project Personnel: Principal Investigator: Michael Marti Co-Principal Investigator: Susan Miller Technical Liaison: Girma Feyissa Project Coordinator: David Glyer Panel Members: Chris Byrd - Stearns County Curt Anderson - Scott County David Tiegs - La Sueur County Eddie Johnson - Materials & Road Research Ethan Peterson - Traffic Engineering HunWen Westman - City of St. Paul Jon Jackels - SRF Consulting Group, Inc Kristi Sebastian - FHWA - Minnesota Division Office Matt Zinniel - Stearns County Melvin Odens - Kandiyohi County Mitchell Bartelt - Metro District Nick Preisler - City of St. Michael - Engineer Steve Love - City of Maplewood Ted Schoenecker - State Aid for Local Transp Victor Lund - St. Louis County Public Works - Engineer