Traffic loads,along with the environment,damage pavement over time.The degradation of pavement quality is reflected in the development of a diversity of pavement distresses,such as cracking,deformation or deterioration.These distresses may occur on the surface and/or in the pavement structure,having a determinant role in pavement's quality.Aiming to increase the degree of reliability of the pavement distress data and reduce pavement observation time and visual inspection operations cost,this work presents the main steps proposed for a methodology to observe,record and evaluate flexible road pavement distresses to assess the quality of road pavements.This methodology is based on an in-vehicle inspection using GNSS and video image capture devices and in the use of Geographic Information System (GIS).Validation of the proposed methodology was made through a case study by comparing the results obtained on the in-vehicle inspection to those from a traditional visual inspection performed on foot.The similarity of results obtained by the two approaches allowed to conclude about the feasibility of the proposed methodology.Among the main advantages of the proposed methodology a highlight is on the possibility to identify,quantify and locate the most severe pavement distresses through the use of spatial tools available on GIS,producing information maps and reports that can be used in the decision-making process about road pavements rehabilitation and conservation.
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