Potential use of valuation-based systems and networks in pavement management systems

摘要

A major objective of a Pavement Management System (PMS) is to assist highway managers and engineers in making consistent and cost effective decisions related to maintenance and rehabilitation of pavements. But in many circumstances in PMS decision making, pavement engineers find themselves in a state of uncertainty. In this paper, the application of valuation-based systems and networks is used to provide a framework for representing, solving, and drawing inferences under a PMS decision- making environment. The valuation-based system is a new representation of decision-making and problem solving. The graphical depiction of a valuation-based system is called a valuation network. Valuation networks provide a compact representation emphasizing qualitative features of decision making. A valuation network in PMS decision making is constructed and the key algorithm in solving and making inferences in the network is illustrated.