Análise Econômica entre Pavimento Flexível e Pavimento Rígido do tipo Whitetoppinh na GO-070, trecho entre Goiânia e Goianira

Abstract

This study presents a comparative analysis between two pavement restoration techniques — flexible pavement with base recycling and rigid pavement of the Whitetopping type — applied to a section of the GO-070 highway, between the municipalities of Goiânia and Goianira. The study was developed based on traffic data, geotechnical tests, and functional and structural evaluations of the pavement, following the guidelines and technical standards established by DNIT. Homogeneous segments were defined based on deflectometric and functional tests, allowing specific structural design for each section. The results indicate that the Whitetopping technique is more advantageous both technically and economically when considering the pavement’s service life, being recommended as the preliminary solution for the analyzed stretch. It is concluded that the adoption of techniques that offer greater durability and reduced maintenance needs, even with higher initial costs, proves to be the better choice for high-traffic segments such as the one analyzed. This highlights the need for a shift in perspective in road restoration projects, which are still predominantly based on flexible pavement solutions.