Análise da qualidade de pavimentos flexíveis com o método IGG (Índice De Gravidade Global): estudo de caso na rua do Estádio Zerão, Macapá-AP

Abstract

The study assesses the pavement condition of Estádio Zerão Street, in Macapá/AP, using the Global Severity Index (IGG) method, in accordance with DNIT guidelines. The objective was to identify and classify the main functional pavement distresses, such as surface wear, cracking, potholes, and depressions, according to the criteria defined by standard DNIT 006/2003-PRO. The methodology included visual surveys, field demarcations, and application of the IGG method, resulting in an index of 251.03 — a value that classifies the pavement as “very poor,” indicating severe deterioration. The degradation causes were attributed to traffic loads, lack of preventive maintenance, drainage failures, and weather exposure. Based on DNIT manuals IPR 710 and IPR 720, the study proposes as a recovery strategy the execution of structural pavement reinforcement, preceded by pothole repairs through patching and the application of a seal coat to treat cracking. Proper surface preparation aims to ensure greater durability of the intervention. Finally, the study emphasizes the importance of systematically applying objective methods such as the IGG for efficient urban pavement management and recommends further complementary studies involving structural testing and continuous monitoring, contributing to more effective technical and economic decision-making.