SISTEMA DE GERÊNCIA DE MANUTENÇÃO EM ESTRADAS NÃO PAVIMENTADAS: um Estudo de Caso em Viçosa- MG

Abstract

The state of Minas Gerais, Brazil has approximately 272063 km of the road network, and approximately 90% of this total are unpaved roads. The paved roads deteriorate from excellent to failed conditions usually in around 10 years, and the unpaved roads deteriorate sometimes in less than a year. This deterioration rate needs to be considered when developing a new methodology for managing them efficiently, because when the budget is limited, it is important to identify the best “mix of road” preservation strategies to optimize the lifecycle cost of the unpaved road network. This study intends to develop a management system using optimization techniques for managing unpaved roads. A probabilistic deterioration model was created using Markovian processes resulting in accurate curves. This optimization system will facilitate a statewide implementation of unpaved roads management systems, and the methodology can be easily adopted by other areas interested in the management of all types of roads.