Nebraska data collection.
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2015-12-01
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Abstract:Automated pavement performance data collection is a method that uses advanced technology to collect detailed road surface ; distress information at traffic speed. Agencies are driven to use automated survey techniques to enhance or replace their ; current manual distress survey because of the advantages of objective measurements, safety benefits, and reduced ; measurement time. As agencies move toward the transition to fully automated data collection methods, there are common ; concerns regarding how the output of the new method will match the current manual survey ratings and how they will be ; adopted into the existing Pavement Management System (PMS). This study evaluates the newly implemented automated ; distress survey technique and its implementation into the Nebraska Pavement Management System (NPMS). To meet the ; objectives, a user-friendly program was developed to convert the automated distress ratings into the current manual distress ; ratings format. Then, a data set that includes more than 7,000 miles of distress data collected by the automated method was ; converted to the manual data format and compared to the most recent manual rating data of those sections to assess the ; agreement between the two data formats after the conversion process. The results show that the automated pavement survey ; slightly overrates bituminous pavement distresses with only a few distress types that could not be properly detected. Finally, ; a regression analysis of a core pavement performance indicator, NSI, was conducted to examine how the new automated ; performance measurement system will ultimately affect NPMS decisions if implemented into Nebraska’s pavement ; management system.
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Main Document Checksum:urn:sha-512:abc6b934ca4e0ba4bac918f1918aab03b1f0bdb714d75f612f13a9e09d3d5a31ba37b269bfa253d3751b02b0b2d065493332dc2141d0953b62f00ce33076e690