Comparación del índice de rugosidad internacional (IRI) a partir de información obtenida por métodos fotogramétricos

Abstract

A parameter that determines the regularity of the track layer of a track and the comfort at the time of driving or transit on it is the index of international roughness which is based on the concept of roughness that is the deviation of a certain surface with respect to a theoretical flat surface. Since this parameter has emerged to date, several methodologies have been applied for its estimation according to the new technological advances used by conventional equipment such as the level and the point used in topography to profile or inertial or electromechanical systems, yielding different yields, costs and degrees of accuracy. Today there is a great technological advance in measuring equipment with the possibility of using new methodologies for the estimation of the international roughness index. This is why this work is based on the calculation of IRI using photogrammetry techniques by unmanned aerial vehicles having as reference or point of comparison two methodologies currently used such as the topographic level and the laser scanner. Finally, when comparing the photogrammetric method with the laser scanner, results are generated with tolerable differences, opening up the possibility of using methodologies that analyze the entire surface and identify deteriorations in the pavement, generating values added to the IRI calculation.