Traffic Sign Life Expectancy

Summary:

The primary goal of this research is to provide objective data about sign life based on the degradation of retroreflectivity and color over time.

Final Deliverables:

• Traffic Sign Life Expectancy (Report #2014-20)
• Estimating Traffic Sign Life Expectancy (Research Summary)

Related Materials:

• TRS: Sign Life-Cycle Policies and Practices  (News/Publication Article)
• Traffic Sign Life Expectancy Project webpage  (Other)
• Traffic Sign Inspection Sheet Sample 1  (Other)
• Traffic Sign Inspection Sheet Sample 2  (Other)
• How better sign managment could save Minnesota millions  (Blog Post)
• Related Research: Minnesota Best Practices for Traffic Sign Maintenance/Management Handbook - Updated  (Other)
• Traffic Sign Life Maintenance/Management Handbook  (Brochure/Handout)
• What's the life of a sign?  (Blog Post)
• Sign Life Expectancy Research Project  (Video/Webinar)

Related Research:

• Sign Retroreflectivity - A Minnesota Toolkit
• Minnesota's Best Practices for Traffic Sign Maintenance/Management Handbook Update

Project Personnel:

Principal Investigator:  Howard Preston

Technical Liaison:  Tim Plath

Project Coordinator:  Shirlee Sherkow

Panel Members: 
Bradley Lechtenberg - Maintenance
Dan Sauve - Clearwater County Hwy Dept
Heather Lott - Traffic, Safety & Technology
James McGraw - Materials & Road Research
KC Atkins - Hennepin County
Kristi Sebastian - FHWA - Minnesota Division Office
Lee Amundson - Lincoln County Engineer
Mark Ray - City of Burnsville
Mark Vizecky - State Aid for Local Transp
Matthew Lebens - Aeronautics
Maureen Jensen - Freight & Commcl Veh Ops
Randy Newton - City of St. Paul
Trisha Stefanski - Asset Management
Victor Lund - St. Louis County Public Works - Engineer