Pavement Marking Retroreflectivity

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