United States Department of Transportation
i
PCR evaluation : considering transition from manual to semi-automated pavement distress collection and analysis.
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2013-07-01
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[PDF-6.12 MB]
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Abstract:This study is designed to assist the Ohio Department of Transportation (ODOT) in determining
whether transitioning from manual to state-of the-practice semi-automated pavement distress
data collection is feasible and recommended. Statistical and numerical comparisons are detailed
between the pavement distresses, severities, and extents determined for 44 representative test
sites by ODOT raters and those provided by three participating vendors. In response to the
moderate to low initial distress (72 percent), severity (33 percent) and overall (14 percent)
correlations, detailed methods for correlation improvement are provided. These methods are
based on extensive interactions with ODOT pavement condition raters and participating vendors.
Evaluations of system implementation costs and productivity rates offer supplemental information
critical to ODOTs implementation decisions. Surveys of six vendors and 18 State agencies reveal the
systems, processes, and experiences of those who provide and use automated methods for
pavement distress data collection. Based on this information, recommendations for
implementation activities, pavement management adjustments, procurement specifications, and
equipment specifications are included.
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