Implementing the International Roughness Index for Concrete Pavement Evaluation

Status: Complete
Report Date: 05/25/2007

Summary:

Mn/DOT was trying to improve its method for awarding bonuses to contractors for especially smooth concrete pavement. Investigators compared the old method for measuring smoothness to the new International Roughness Index standard, looking at how each pavement analysis method depicts various surface imperfections and evaluating the different options for implementing IRI incentives.

Project Personnel:

Principal Investigator: (William) James Wilde

Technical Liaison: Bernard Izevbekhai

Project Coordinator: Clark Moe

Panel Members:
Curt Turgeon - Materials & Road Research
Doug Schwartz - Mn/DOT/Materials & Road Research
Joseph Thomas - State Aid for Local Transp
Maria Masten - Materials & Road Research
Ronald Mulvaney - Materials & Road Research

Final Deliverables:

Report #2007-09
Research Summary