Estudo da sensibilidade de aplicativos para smartphones na avaliação da irregularidade longitudinal de pavimentos urbanos

Abstract

Longitudinal roughness is one of the main factors in the functional evaluation of pavements. Therefore, providing equipment and methods that accelerate the measurement of this parameter and provide objective results is of utmost importance for the effective maintenance of this structure. Smartphone applications appear as a viable alternative to traditional methods of assessing longitudinal roughness of pavements, as they have low acquisition cost, many even free of charge; user-friendly operation and objective results of the International Roughness Index (IRI), which is the most representative parameter to measure the roughness. Other advantages of using applications are that the result is presented by 100 meter stretches, allowing for a more detailed analysis of sections and traffic lanes that are more deteriorated than others, which is not possible in an overall assessment. This graduation project proposes a comparative performance analysis between Roadroid, Roadlab and SmartIRI applications in urban roads, evaluating the CE-401 Highway and Dioguinho Avenue, both located in Fortaleza, Ceará state. The results identified differences in sensitivity between applications regarding pavement type and measurement speed, an important factor within the urban perimeter. In addition, the critical lanes and stretches that have lower functional quality than the rest of the highways were also identified. This work is expected to assist road management bodies in the process of road maintenance and rehabilitation, with regard to the costs and accuracy of the data collected, in order to ensure a better investment directed to the sector.