Iowa Pavement Analysis Techniques (IPAT) Tool

Details

• Creators:
  Citir, Nazik ; Kaya, Orhan ; Ceylan, Halil ; Kim, Sunghwan ; Waid, Danny ; Moore, Brian P
• Corporate Creators:
  Iowa State University. Institute for Transportation ; Iowa State University. Program for Sustainable Pavement Engineering and Research (PROSPER)
• Corporate Contributors:
  Iowa Highway Research Board ; Iowa. Department of Transportation
• Subject/TRT Terms:
  Methodology Pavement Distress Pavement Management Systems Pavement Performance Service Life
• Publication/ Report Number:
  TR-740, InTrans Project 18-640
• Resource Type:
  Manual
• Geographical Coverage:
  Iowa;United States
• Edition:
  User Guide
• Corporate Publisher:
  Iowa State University. Institute for Transportation
• Abstract:
  Recent federal legislation requires state highway agencies (SHAs) and local road agencies to utilize performance-based approaches in their pavement management decision-making processes. The use of a remaining service life (RSL) model would be one such performance-based approach that could facilitate the pavement management decision-making process. This study developed a Microsoft Excel macro and Visual Basic for Applications (VBA)-based Iowa Pavement Analysis Techniques (IPAT) automation tool that Iowa county engineers can use to estimate the project- and network-level pavement performance and RSL. To address this aim, statistics and artificial neural network (ANN)-based pavement performance and RSL models were developed using pavement structural features, traffic, construction history, and pavement performance records obtained from the Iowa Department of Transportation (DOT) Pavement Management Information System (PMIS) and the Iowa county agencies’ database. The accuracy of the models was evaluated using the real database representing Iowa county pavement systems. The IPAT tool provides a series of options for four pavement types representing Iowa county pavement systems—jointed plain concrete pavement (JPCP), asphalt concrete (AC) pavement, AC over JPCP, and portland cement concrete (PCC) overlay—to estimate RSL through different approaches based on various conditions and distress data availability from an individual county. The IPAT tool is expected to be used as part of performance-based pavement management strategies and to significantly help decision-makers facilitating maintenance and rehabilitation decisions for better prioritization and allocation of resources.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:afc21ae95153586e6c82a181c778d1cdad9381fe407483f7331e755a8b5bc2b5ca196492a62fa481341bf10863d4092d3634bf6fb4afb03a184c6e0e4dbdbe4e
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/79667/dot_79667_DS1.pdf
• File Type:
  [PDF - 8.26 MB ]