PCR evaluation : considering transition from manual to semi-automated pavement distress collection and analysis.

PDFTech ReportSJN134668Pavement distressData collectionState of the practiceCondition surveysStructural health monitoringMeasuring methodsImplementationOhioOhio. Dept. of Transportation. Office of Statewide Planning and ResearchVavrik, WilliamEvans, LynnSargand, ShadStefanski, JosephApplied Research Associates, Inc.Ohio UniversityUnited States. Federal Highway AdministrationUS Transportation CollectionThis study is designed to assist the Ohio Department of Transportation (ODOT) in determiningwhether transitioning from manual to state-of the-practice semi-automated pavement distressdata collection is feasible and recommended. Statistical and numerical comparisons are detailedbetween the pavement distresses, severities, and extents determined for 44 representative testsites by ODOT raters and those provided by three participating vendors. In response to themoderate to low initial distress (72 percent), severity (33 percent) and overall (14 percent)correlations, detailed methods for correlation improvement are provided. These methods arebased on extensive interactions with ODOT pavement condition raters and participating vendors.Evaluations of system implementation costs and productivity rates offer supplemental informationcritical to ODOTs implementation decisions. Surveys of six vendors and 18 State agencies reveal thesystems, processes, and experiences of those who provide and use automated methods forpavement distress data collection. Based on this information, recommendations forimplementation activities, pavement management adjustments, procurement specifications, andequipment specifications are included