Historical Performance Evaluation of Iowa Pavement Treatments Using Data Analytics
The pavement network in Iowa has reached a mature state making maintenance and rehabilitation activities more important than new construction. As such, a need exists to evaluate the performance of the pavement treatments and estimate their performance lives to support future maintenance and rehabilitation decisions. This evaluation can be achieved by examining the pavement condition data before and after any treatment method was applied. However, the pavement condition data for Iowa roads stored in the Iowa Department of Transportation’s (DOT’s) geographic information system (GIS) were not compatible with the preservation and rehabilitation project data available from the Iowa DOT Office of Contracts. Therefore, this study used GIS tools and methods, such as the Iowa DOT’s linear referencing system (LRS) and geoprocessing tools, to spatially integrate the two databases and examine the pavement conditions before and after the application of pavement treatments. Afterward, data analytics were conducted to evaluate the actual pavement performance information and estimate the service life of each treatment method using different performance indicators. Moreover, pavement performance analysis developed at the distress-level scale found that most of the analyzed segments had irregular patterns in terms of longitudinal cracks, transverse cracks, alligator cracks, and longitudinal cracks on the wheelpaths. On the other hand, the researchers found that rutting and the International Roughness Index (IRI) were the most consistent pavement performance indicators. As such, these two indicators were used to estimate the average service lives of the rehabilitation treatments. Based on the analysis conducted, hot-mix asphalt (HMA) resurfacing, HMA resurfacing with milling, and HMA resurfacing with cold in-place recycling (CIPR) have longer service lives when the IRI was used as a performance indicator. In addition, HMA resurfacing with CIPR outperformed HMA resurfacing with or without milling when traffic loadings were low.
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Language
- English
Project
- Status: Completed
- Funding: $172834.00
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Contract Numbers:
DTRT13-G-UTC37
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Sponsor Organizations:
Iowa State University
2711 S Loop Drive, Suite 4700
Ames, IA United States 50010-8664 Office of the Assistant Secretary for Research and Technology
1200 New Jersey Avenue, SE
Washington, DC United States 20590Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010Iowa Highway Research Board
Iowa Department of Transportation
800 Lincoln Way
Ames, IA United States 50010 -
Performing Organizations:
Iowa State University, Ames
Institute for Transportation
ISU Research Park
Ames, IA United States 50011-8664 Iowa State University
2711 S Loop Drive, Suite 4700
Ames, IA United States 50010-8664 -
Principal Investigators:
Smadi, Omar
Jeong, David
- Start Date: 20140701
- Expected Completion Date: 20160930
- Actual Completion Date: 0
- Source Data: RiP Project 39368
Subject/Index Terms
- TRT Terms: Before and after studies; Cost effectiveness; Decision support systems; Geographic information systems; Pavement performance; Service life; Surface treating
- Geographic Terms: Iowa
- Subject Areas: Data and Information Technology; Economics; Highways; Maintenance and Preservation; Pavements;
Filing Info
- Accession Number: 01560540
- Record Type: Research project
- Source Agency: Midwest Transportation Center
- Contract Numbers: DTRT13-G-UTC37
- Files: UTC, RiP
- Created Date: Apr 16 2015 1:01AM