Modelo del índice de serviciabilidad (PSI) para la evaluación de pavimentos flexibles en una vía de primer orden

Abstract

The objective of the research work is to analyze the surface regularity of flexible pavements as a function of IRI and PSR to propose a model of the serviceability index PSI in a first-order road.In the research, exploratory studies were carried out, through a documentary-qualitative and quantitative analysis of the object of study through the search, reading and interpretation of information from primary and secondary sources that allowed us to obtain information on the serviceability index and the evaluation of flexible pavements. Descriptive studies of the study variables were then carried out, analyzing the information obtained in the exploratory study. Finally, the variables were correlated: Present Serviceability Index PSI and the evaluation of flexible pavements in a first-order road. This correlation is manifested at the moment that the serviceability model obtained is applied in the evaluation of flexible pavements, allowing the adoption of timely measures in road maintenance.The model obtained is a quadratic equation that has an R2 of 0.80, which shows that it fits the data very well and that it has a great predictive capacity within the calibration ranges of the model.In this work, the surface regularity of flexible pavements was analyzed as a function of IRI and PSR and a serviceability index PSI model is proposed for a first-order road. The serviceability index PSI is an indicator that allows evaluating the surface regularity of the pavement, allowing good management of the maintenance of first-rate roads to make timely and well-founded decisions that avoid major and costly problems