Abstract:
This paper proposes the application of the MACBETH approach for the development of
a multi criteria value model to enable the prioritization of maintenance and rehabilitation
interventions in the pavements of road networks according to technical, economic,
and social aspects. A case-study design considering the Portuguese network was
undertaken to illustrate the proposed approach. Using an interactive structuring process
developed with the decision-maker, a set of five evaluation criteria related to maintenance
costs, traffic, pavement condition, safety, and social equity were defined. The MACBETH
approach was then used to build value functions and establish relative weights
for the criteria. An application of the resulting model was made to a portfolio of
possible intervention projects, prioritizing them according to the principle of benefit/cost
maximization. The case-study demonstrated the application of the MACBETH approach
and its suitability to solve the decision-making problem, thus proving the usefulness of
this approach for road agencies with pavement management responsibilities.
