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- W657683886 abstract "The Texas Department of Transportation (TxDOT) is implementing a Profilograph-based QC/QA smoothness specification wherein surface smoothness is measured using the Profile Index (PI) determined from Profilograph data. In view of the relative importance of the daily average PI, it is imperative that the reduction of profilograms be completed expeditiously. Failure to do so can result in construction delays. This report presents a method for automated reduction of profile data from manual Profilographs. From experience, the manual method of reducing profilograms is both time consuming and subjective, and a faster and more consistent alternative is definitely warranted. To address this need, researchers evaluated a computerised data reduction system called ProScan to profilograms. In this method, a profilogram is scanned and the determination of PIs and defect stations is accomplished automatically via software. Output shows the calculated Profile Indices for the scanned segments and the locations of defects (bumps and dips). In view of the potential improvement in productivity that ProScan may bring, TxDoT requested the product evaluation presented in this report. This evaluation consisted of comparing the results obtained automatically by ProScan with the results obtained manually using the method specified by TxDoT under Test Method Tex-1000-S, Operaton of Pavement Profilograph and Evaluation of Profiles. The main finding from the study is that ProScan gives accurate and consistent results, at significantly less time and effort, compared to the manual method. The operational experience in using ProScan is described, along with recommendations for additional improvements." @default.
- W657683886 created "2016-06-24" @default.
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- W657683886 date "1994-12-01" @default.
- W657683886 modified "2023-09-27" @default.
- W657683886 title "ProScan system evaluation" @default.
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