Pavement management systems (PMS) require data that faithfully reflect the properties and other operating circumstances of the network. It is a well-known, though frequently ignored, fact that much of the information is uncertain or poorly represented either due to the nature of the data (e.g. environment) or due to the aggregation of the data into disparate segments. Ignoring the uncertain nature of the input transfers the level of uncertainty to the output without acknowledging or quantifying the level of uncertainty.
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