Multi-objective optimization of road design alternatives with an application of the MOORA method

Abstract

Multi-objective analysis is a popular tool in many economic, managerial, constructional, etc. problems. The objective of this research is to develop and implement a methodology for multi-objective optimization of multi-alternative decisions in road construction. After a rough overview of multi-objective decision support for assessment of road design alternatives multi-objective optimization with discrete alternatives: MOORA (Multi-Objective Optimization on basis of Ratio Analysis) was selected. This method goes for a matrix of responses of alternatives on objectives, on which ratios are applied. This methodology is applicable to the problems with large numbers of scenarios and objectives. A case study demonstrates the concept of multi-objective optimization of road design alternatives and the best road design alternative is determined.