The Virginia skid vehicle has been equipped with a digital data recording system to provide rapid reduction of skid measurement data. It was found that five to ten minutes are required to evaluate a single measurement using the original analog strip chart system, whereas the digital results for a full day of testing can be evaluated within a matter of minutes. The components of the recording system and the calibration and measurement procedures were examined, and the results from the digital system were studied to determine their precision and accuracy as compared to the analog system results.
The Virginia Department of Highways has for many years been concerned with the slipperiness of highway pavements, and has undertaken remedial action a...
The purpose of this report is to describe the system for obtaining and handling skid data, including skid testing procedures and data input procedures...
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United States Department of Transportation
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