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Data Processing and Analysis Software for Continuous Friction Measurement Equipment

A major advantage of fixed-slip devices over locked-wheel testers is that fixed-slip devices collect friction data continuously at highway speeds with low water consumption and thus make fixed-slip devices a practical choice for collection of network-level pavement friction data. These devices are highly maneuverable and especially adapted for investigating accident sites, supporting wet-weather accident reduction programs, and identifying localized areas with reduced friction. These devices have not been implemented for use on highways in the United States to an extent commensurate with their potential benefits. But the decision to implement this type of equipment will also be influenced by how easy it is to gather and present the information it collects. Although it is inarguable that the quality of a continuous friction profile provides a wealth of information not achievable with most locked-wheel testers, the processing of vast amounts of information can be overwhelming for an operator or an analyst responsible for preparing reports. A software program has been developed to allow users to view and analyze continuous pavement friction data automatically without further processing. This program allows users to perform averages, segmentations, and other desirable data analysis while enabling the construction of user-defined plots for presentations, documents, or both, allowing an improved procedure to evaluate and schedule any maintenance work required.