Impact of Costs Related to International Roughness Index Variability on a Brazilian Runway

ABSTRACT The functional quality of runways (RWY) is a critical factor for the safety and comfort of airport operations. One of the main indices used to assess this quality is the International Roughness Index (IRI). Maintaining IRI values within acceptable limits is essential to avoid operational problems, reduce aircraft maintenance costs, and ensure safety. In this context, the aim of this article is to analyze whether there is variability in the IRI with maintenance and rehabilitation (M&R) costs on a RWY. The research method used data provided by the National Agency for Civil Aviation (Agência Nacional de Aviação Civil [ANAC]) for the years 2020, 2021, and 2023, collected by a laser profilometer. The results show that the interventions carried out in 2020 reduced the IRI values in 2021, improving the pavement condition. However, an increase in the IRI values was observed in 2023, indicating the onset of deterioration. The financial analysis showed that the most expensive interventions occurred in 2020 due to the need for pavement reconstruction, while in 2021, costs were lower due to preventive maintenance. In 2023, costs increased again, highlighting the importance of continuous M&R. In conclusion, fair M&R interventions are essential to maintain RWY quality and safety, prevent degradation, and avoid high future costs.