North Central Pavement Research and
Implementation Coordination Partnership

Welcome

The North Central Pavement Research and Implementation Coordination Partnership (formerly the Frozen Four) was created in 2005 to facilitate effective information sharing and coordinated implementation efforts related to highway pavement research. State DOTs, universities and FHWA participate in this exciting pooled fund project.

The goal of this site is to help partner agencies efficiently review each others' research efforts, learn about each others' approaches to program administration, look for areas of overlap or duplication, and identify opportunities for collaboration.

New! Information and Presentations from the October, 2008 workshop on Pavement Stabilization

2008 Work Plan

The member states voted to extend the pooled fund for another two years. The Draft 2008 Work Plan allows for annual technology transfer workshops, pilot research projects and additional research and implementation collaboration. There will be a conference call early this summer to discuss and finalize the workshop and research topics. All new members will have an opportunity to contribute ideas to the lists below. If you are interested in becoming a member of this pooled fund, please contact Hussain Bahia.

Potential Workshop Topics

• Field Measurement of Soil Stiffness and Implementation of Intelligent Compaction Technologies
• Whitetopping
• Pre-Overlap Repair
• Use of Open Graded Friction Course
• Implementation of Research: Results, Processes, Challenges, and Definition of Project Champions
• Materials Characterization for Design and Construction

Potential Pilot Research Projects

• Field Measurement of Soil Stiffness
• Evaluation of Differences in Regional Resilient Modulus Test Methods

Recent pooled fund products

WisDOT Research Efforts That Support Implementation of the AASHTO Mechanistic-Empirical Pavement Design Guide
April 2008, PDF File (171 KB)
An overview of research efforts funded or otherwise supported by the Wisconsin Department of Transportation that support its adoption of the AASHTO Mechanistic-Empirical Pavement Design Guide.

Comparing Frozen Four Soils and Foundations Research Activities to a Geotechnical Research Road Map
June 2007, PDF File (112 KB)
A comparison of member states' soils and foundations research projects with
a Geotechnical Research Road Map that outlines past and future geotechnical
research directions.

Determining Resilient Modulus of Subgrade Materials for Mechanistic-Empirical Design
July 2007, PDF File (94 KB)
A report on current research and practice in determining resilient modulus
of subgrade, combined with a review of partner state research on the
subject.

Research Collaboration Opportunities: Four States’ Problem Statements and Related Research
March 2007, PDF File (108 KB)
An analysis of the Frozen Four member states’ recent research problem statements, as well as of related research they are conducting or have completed, to identify opportunities for collaboration.

Comparing Frozen Four Rigid Pavement Research Activities to the Concrete Pavement Road Map
March 2007, PDF File (150 KB)
A review of the member states’ concrete research projects to identify where there are overlaps or gaps with the Concrete Pavement Road Map. Includes recommendations from the agencies’ technical staffs on how to best align the states’ research projects with the Concrete Pavement Road Map research tracks.

Comparing Research Projects Of WisDOT and Neighboring States To the National Asphalt Roadmap
March 2007, PDF File (250 KB)
A comparison of member states’ asphalt pavement research projects with the research priorities set forth in the draft National Asphalt Roadmap.