Multiobjective Optimization for Maintenance Decision Making in Infrastructure Asset Management

Maintenance decision making that selects appropriate maintenance strategies for a road network is an important and complex part of infrastructure asset management (IAM). Multiobjective optimization (MOO) can help in simplifying a decision making problem with multiple objectives and trading off objectives by identifying efficient solutions. Therefore, MOO is a helpful tool in the decision-making process. The main objective of this study is to analyze the optimization problem involved in practical decision-making processes using MOO and to identify efficient solutions in the context of maintenance decision making. To accomplish this aim, this paper (1) introduces decision making in IAM along with a discussion of previous applications of optimization; (2) discusses the mathematical formulation of optimization problems in the context of IAM decision making; (3) proposes an optimization method known as dichotomic approach (DA) to solve the optimization problems of decision making by identifying efficie...