Concepção de modelos de avaliação de condições de rolamento e indicação de priorização de vias como etapas de um sistema de gerência de vias não pavimentadas

Abstract

This work aims to contribute to the conception of a Pavement Management System (PMS) focusing unpaved roads. The evaluation approach involves two stages: the first one consists in the adaptation of an evaluation methodology created to the North America road surface conditions. That modified methodology was used in unpaved roads in the district of Aquiraz, in the State of Ceará, northeastern Brazil. The second stage aims at applying a multicriteria decision support method (MDSM) in the process of ranking maintenance investments in unpaved roads taking into consideration a group of key variables that were expected to influence the operation of those roads. The ranking method is supported by the Analytic Hierarchy Process (AHP) and it is based on interviews with engineering professionals specialized in the design and analysis of roadway projects. Those professionals were divided into five groups according to their professional skills: a group of students of a M.Sc. Course in Transportation Engineering; a group of professionals who already have obtained the M.Sc. degree in Transportation Engineering; a group of University lecturers; a group of professionals of the Department of Building, Roads and Transportation, of the Ceará State; and a group of consulting engineers. The Expert Choice Software was used to help in the application of AHP, mainly in the task of determining the logical consistency of the comparison matrices as well as in using sensibility analysis to find the most probable order of priority for maintenance investments in some roads of the study area.