Incorporation of Reliability in Minnesota Mechanistic-Empirical Pavement Design
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Incorporation of Reliability in Minnesota Mechanistic-Empirical Pavement Design
Published Date
1999-07
Publisher
Minnesota Department of Transportation
Type
Report
Abstract
This report documents the research that incorporated reliability analysis into the existing mechanistic-empirical (M-E) flexible
pavement design method for Minnesota. Reliability in pavement design increases the probability that a pavement structure will
perform as intended for the duration of its design life.
The report includes a comprehensive literature review of the state-of-the-art research. The Minnesota Road Research Project
(Mn/ROAD) served as the primary source of data, in addition to the literature review. This research quantified the variability of
each pavement design input and developed a rational method of incorporating reliability analysis into the M-E procedure
through Monte Carlo simulation.
Researchers adapted the existing computer program, ROADENT, to allow the designer to perform reliability analysis for
fatigue and rutting. A sensitivity analysis, using ROADENT, identified the input parameters with the greatest influence on
design reliability. Comparison designs were performed to check ROADENT against the 1993 AASHTO guide and the existing
Minnesota granular equivalency methods. Those comparisons showed that ROADENT produced very similar design values for
rutting. However, data suggests that the fatigue performance equation will require further modification to accurately predict
fatigue reliability.
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Minnesota Department of Transportation
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Timm, David H.; Newcomb, David E.; Birgisson, Bjom; Galambos, Theodore V.. (1999). Incorporation of Reliability in Minnesota Mechanistic-Empirical Pavement Design. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/152974.
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