Informe de evaluación de la red vial nacional pavimentada de Costa Rica año 2008
Fecha
2008
Autores
Rodríguez Mora, Marcos
Garro Mora, José Francisco
Título de la revista
ISSN de la revista
Título del volumen
Editor
Laboratorio Nacional de Materiales y Modelos Estructurales (LanammeUCR)
Resumen
Referente a la evaluación realizada con el deflectómetro de impacto (FWD), se denota que dos terceras partes de la red vial presentan deflexiones dentro del rango bajo o adecuado, el cual se estableció según el nivel de tránsito promedio diario TPD, lo que permite dar una idea más realista sobre el estado de las rutas según la intensidad de su utilización (TPD). Esta evaluación revela que 231 Km mejoraron en este parámetro entre el año 2006 y 2008. Sin embargo, cerca de una quinta parte de la red vial (828 Km) presentan deflexiones altas y muy altas, lo cual revela un posible pavimento débil, deficiente construcción de la ruta, o bien un estado avanzado de deterioro.
La evaluación de la regularidad superficial IRI demuestra que sólo una quinta parte de la red vial presenta un valor de IRI aceptable; una tercera parte un valor moderado; y un poco más de la mitad valores altos en este parámetro. Al relacionarse directamente con el confort y los costos operativos de los vehículos que circulan por la red vial, es de vital importancia mejorar la regularidad de los pavimentos con un plan de reconstrucción / mantenimiento, donde el IRI sea un parámetro objetivo de mejoramiento de primera importancia en los proyectos viales.
Se han presentado y analizado tres tramos de rutas nacionales para las cuales se encuentra que para las rutas 2 y 32 su vulnerabilidad ante eventos naturales es alta, en tanto para la ruta 10 su vulnerabilidad es más bien moderada, con un riesgo menor además debido a la existencia de una ruta alterna (la No. 32) y una menor exposición por tener menor tráfico diario.
Regarding the evaluation made with the impact deflectometer (FWD), it is noted that two thirds of the road network have deflections within the low or adequate range, which was established according to the average daily traffic level TPD, which allows a more realistic idea about the state of the routes according to the intensity of their use (TPD). This evaluation reveals that 231 km improved in this parameter between 2006 and 2008. However, about one fifth of the road network (828 km) have high and very high deflections, which reveals a possible weak pavement, poor construction of the route, or an advanced state of deterioration. The IRI surface regularity evaluation shows that only one fifth of the road network has an acceptable IRI value; one third a moderate value; and a little more than half the high values in this parameter. When directly relating to the comfort and operating costs of the vehicles that circulate on the road network, it is vital to improve the regularity of the pavements with a reconstruction / maintenance plan, where the IRI is an objective parameter of improvement of first importance in road projects. Three sections of national routes have been presented and analyzed, for which it is found that for routes 2 and 32 their vulnerability to natural events is high, while for route 10 their vulnerability is rather moderate, with a lower risk also due to the existence of an alternate route (the No. 32) and a lower exposure due to having less daily traffic.
Regarding the evaluation made with the impact deflectometer (FWD), it is noted that two thirds of the road network have deflections within the low or adequate range, which was established according to the average daily traffic level TPD, which allows a more realistic idea about the state of the routes according to the intensity of their use (TPD). This evaluation reveals that 231 km improved in this parameter between 2006 and 2008. However, about one fifth of the road network (828 km) have high and very high deflections, which reveals a possible weak pavement, poor construction of the route, or an advanced state of deterioration. The IRI surface regularity evaluation shows that only one fifth of the road network has an acceptable IRI value; one third a moderate value; and a little more than half the high values in this parameter. When directly relating to the comfort and operating costs of the vehicles that circulate on the road network, it is vital to improve the regularity of the pavements with a reconstruction / maintenance plan, where the IRI is an objective parameter of improvement of first importance in road projects. Three sections of national routes have been presented and analyzed, for which it is found that for routes 2 and 32 their vulnerability to natural events is high, while for route 10 their vulnerability is rather moderate, with a lower risk also due to the existence of an alternate route (the No. 32) and a lower exposure due to having less daily traffic.
Descripción
Palabras clave
FWD, IRI, eventos naturales
Citación
https://www.lanamme.ucr.ac.cr/repositorio/handle/50625112500/1204