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Measuring accuracy of the profiler and analysis of waviness of the road profile are indispensable to the evaluation of road surface characteristics. This study deals with the measuring accuracy of high-speed profilers developed in our country taking particular note of the wave band (hereafter WB) of longitudinal road profiles. In considering, the band-pass filter is designed and the profile estimate filter is newly developed and the comparative study for the Repeatability and the Reproducibility of profilers is carried out using the PIARC EVEN data. From the results, a frequency response characteristic of the profilers, which is difficult to find by the evaluation index for a road section, is clarified. In addition, it is shown that even a simple measuring system makes it possible to estimate the true profile with a high degree of accuracy using the highly-repeatable profile r at a certain WB.
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Shirakawa et al. (2002) studied this question.
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