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Effectiveness of Pavement Preservation Techniques

Project Details
STATUS

Completed

PROJECT NUMBER

16-586, TR-709

START DATE

08/17/16

END DATE

05/31/19

FOCUS AREAS

Infrastructure

RESEARCH CENTERS InTrans, AMPP
SPONSORS

Iowa Department of Transportation
Iowa Highway Research Board

Researchers
Principal Investigator
Ashley Buss

Assistant Professor, Civil, Construction and Environmental Engineering

Co-Principal Investigator
Fatih Bektaş

Associate Scientist, CTRE

About the research

Success of pavement preservation depends upon which distresses require proper mitigation. While more robust rehabilitation or reconstruction methods have been proven to eliminate severe pavement defects, they are unlikely to remain the most cost-effective. The key challenge for preservation programs comes from budget and personnel shortages, and without an accurate understanding of local preservation performance, the success of a program in unlikely.

The Iowa Department of Transportation (DOT) has invested in the collection of pavement information, storing it in its own pavement management information system. Combined with construction records, this database can be utilized to extract relevant performance data for various preservation methods. By compiling construction and performance data in one place, effective preservation strategies and cost-effectiveness can be objectively evaluated based on observed performance.

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