Análise do Custo do Ciclo de Vida para otimização de estratégias de manutenção e reabilitação em pavimento aeroportuário

Abstract

Maintenance and rehabilitation (M&R) activities are necessary to maintain or extend the performance and, consequently, the useful life of the pavements. In airport pavements, these activities are related to the safety in landing and take-off operations. Especially with the increased demand for air transport, it is understandable that there is concern on the part of the National Civil Aviation Agency of Brazil (ANAC) and aerodrome operator with the necessary financial resources to maintain the pavement in proper operating and traffic conditions. Therefore, Life Cycle Cost Analysis (LCCA) allow an economic evaluation in the medium and long term, which associated with the pavement performance throughout their useful life, support decision making and assist in guaranteeing security in airport operations, as well as the effective management of available resources. During the development of this work, five different scenarios for M&R activities on a brazilian military aerodrome runway aimed at correcting the excess of roughness, assessed through the International Roughness Index (IRI), were analyzed. The ACCV carried out had the potential to economically compare the proposed alternatives, in addition to highlighting the indispensability of M&R activities, since the application of maintenance, whether preventive or corrective, reduced the total costs and offered a better performance to the pavement, considering the period of analyses. Thus, for both deterministic and probabilistic approaches, it was found that the failure to carry out M&R activities causes higher costs for aerodrome operators. As a result of the runway roughness condition, the pavement maintenance is essential for the guaranteed safety of landing and take-off operations.