Uso de Indicadores para Avaliação do Sistema Viário Urbano

Abstract

The urban infrastructure is composed by several subsystems, which provide the instruments and means necessary for the population to carry out its activities. The road subsystem is formed by transportation routes, structures that allow the movement of people and goods and also give support to elements of other subsystems. The roads are directly linked to the activities developed in cities, and because of that, constant investments are necessary to keep them at an adequate level of service. Thus, the use of tools and data to aid the decision making are very useful, since it allows to establish the technical and economically most appropriate intervention for each scenario. The present work sought to analyze the perception of the users about the elements that compose the urban road system (pavement, bicycle path, sidewalk and surface drainage) and, from this, define a method to evaluate their quality. From the bibliographic review, three indicators were chosen for each element, which were used in the questionnaire and also in the evaluation method of the urban roads. The questionnaire was developed using the Best-Worst Scaling technique, where the indicators could be classified as "best", "worst" or “neither”. For the bicycle path, sidewalk and drainage, the "Conservation" indicator was the most important according to the respondentes; for the pavement, “Pothole” was the most important indicator. In the evaluation of the roads, the pavement was the element with the best results according to the current condition, considering its three indicators. The other three elements had mixed results, especially the sidewalk and drainage, as some of their indicators presented different classifications in each of the routes analyzed. Statistical analysis of the scores showed that, despite three cases with high coefficients of variation, most of the indicators obtained satisfactory results, showing that the method is easy to understand and can be used to evaluate urban roads.