PGA is a program of the Center for Transportation Research and Education at Iowa State University.

CTRE: Center for Transportation Research and Education
Iowa State University

Contact
PGA
Iowa State University
2711 South Loop Drive, Suite 4700
Ames, IA 50010
Phone: 515-294-5798
Fax: 515-294-0467

Research

The PGA defines and prioritizes geotechnical problems, and through an understanding of these problems, develops applicable solutions through research that will result in increased value through better life-cycle performance.

Projects

In progress

Complete

Reports

Date Published Title
Oct 2007 Embankment Quality, Phase 4: Application to Unsuitable Soils (TR-492), 6.5 mb pdf
Jun 2007 Effective Shoulder Design and Maintenance (TR-531), 12 mb pdf
Apr 2007 Field Study of Compaction Monitoring Systems: Self-Propelled Non-Vibratory 825G and Vibratory Smooth Drum CS-533E Rollers, 12.8 mb pdf
Mar 2007 Field Validation of Intelligent Compaction Monitoring Technology for Unbound Materials and HMA, 14 mb pdf
Mar 2006 Field Evaluation of Compaction Monitoring Technology: Phase 2, 13.2 mb pdf
Dec 2005 Innovative Solutions for Slope Stability Reinforcement and Characterization: Vol. I, 1.2 mb pdf
Dec 2005 Innovative Solutions for Slope Stability Reinforcement and Characterization: Vol. II, 6.1 mb pdf
Dec 2005 Innovative Solutions for Slope Stability Reinforcement and Characterization: Vol. III, 10.6 mb pdf
Jun 2005 Review of Stability Berm Alternatives for Environmentally Sensitive Areas, 1.2 mb pdf
May 2005 Synthesis of Non-Destructive Testing Technologies for Geomaterial Applications, 1.8 mb pdf
Jan 2005 Identification of the Best Practices for the Design, Construction, and Repair of Bridge Approach Sections (TR-481), 9.7 mb pdf
Sep 2004 Field Evaluation of Compaction Monitoring Technology, Phase 1 (TR-495), 7 mb pdf
May 2004 Determination of the Optimum Base Characteristics for Pavements (TR-482), 11.9 mb pdf

Tech transfer summaries

In brief summaries of its research projects and innovations, the PGA provides highway managers, engineers, contractors, technicians, and suppliers with technical information needed to design, build, and maintain better performing roadways.

The two- to eight-page tech transfer summaries include project sponsors, contact information, objectives, problem statement, technology description, key findings, implementation benefits, and implementation readiness. The concise, illustrated format effectively communicates research results to a wide audience and helps move research advancements into practice.

Date Published Title
Jan 2005 Best Practices for Bridge Approaches, pdf
Jun 2007 Effective Shoulder Design and Maintenance, pdf
Mar 2006 Field Evaluation of Compaction Monitoring Technology, pdf
Jun 2007 Field Validation of Intelligent Compaction Monitoring Technology for Unbound Materials, pdf
Mar 2006 Innovative Solutions for Slope Stability Reinforcement and Characterization, pdf
May 2004 Optimum Pavement Base Characteristics, pdf
Sep 2004 Soil Compaction Monitoring Technology, pdf

Page last updated: April 20, 2007