PCR Evaluation: Considering Transition from Manual to Semi-Automated Pavement Distress Collection and Analysis.

摘要

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 ODOT's 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.