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Publication Details

An Interlab Evaluation of the Variability in the ASTM C 457 Linear Transverse Method General Interest: provides practical guidance to engineers responsible for the day-to-day design, construction, rehabilitation, maintenance, and management of pavements. Research/Reference: useful for researchers doing further work in the pavement area as well as those developing improved testing and design procedures. Includes documents of historical value.

Primary Topic: Materials-Concrete

Description: This report documents the results of a round-robin study of the ASTM C 457 linear traverse method, which was initiated to access the typical variability associated with the linear traverse test when performed by a human operator. The round robin was performed as part of a national pooled-fund study, led by the Missouri Department of Transportation (MoDOT), and sponsored by 13 states, entitled "Advanced Research.. .of a Fully Automated Image analysis system." The goal of the pooled-fund study was to refine and complete the development of a fully automated, computer-based linear traverse system, which could provide results equal to or better than those of a linear traverse performed by a human operator. Thus, the round robin study was undertaken to access accuracy and precision of a human-based linear traverse for which the automated system could be measured against.

FHWA Publication Number:

Publication Year: 2005

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