Los modelos de aceleracion y desaceleracion son necesarios para construir los perfiles de velocid... more Los modelos de aceleracion y desaceleracion son necesarios para construir los perfiles de velocidad para el diseno geometrico de carreteras y evaluar la consistencia. Generalmente se usa un valor de aceleracion / desaceleracion de 0,85 m/s2. El estado del arte muestra que este valor no es constante para todos los casos observados. Este articulo presenta un estudio de modelos de aceleracion y desaceleracion de vehiculos livianos en tres carreteras rurales de dos carriles en San Juan, Argentina. Estos valores se midieron con un equipo GPS y una camara de alta resolucion, los cuales fueron instalados en los vehiculos de prueba. El trabajo estudio dos aspectos, la desaceleracion desde la tangente de entrada a la curva horizontal y la aceleracion desde la curva horizontal hacia la tangente de salida. Se registraron datos de aproximadamente 400 curvas horizontales con radios mas pequenos de 1 000 m, con tangentes hasta 2 000 m y pendientes longitudinales menores al 5%. Los datos se recole...
The most important terrestrial connection between Argentina and Chile is the International Pass “... more The most important terrestrial connection between Argentina and Chile is the International Pass “Cristo Redentor”, concentrating more than 70% of the trade between both countries. On the Argentine side, at the middle of the Andes Range, National Road No 7 has a jointed plain concrete pavement in its section nearest to the boundary. That pavement is more than 20 years old, and supported during its life very hard winters and a traffic with a high proportion of heavy articulated trucks. This paper presents an evaluation of the performance of that pavement from recently collected distress data, using World Bank s and PIARC s HDM-4 Model. Results clearly show the high influence of rigorous climate and winter maintenance on the severe distress observed on the surface of the pavement, especially in its sectors of higher altitude above sea level. Also, the predictive capacity of HDM-4 distress models for jointed plain concrete pavements has been verified in this case; functional-type models...
Any highway should be able to offer driving safety. In this sense, it is especially valued that r... more Any highway should be able to offer driving safety. In this sense, it is especially valued that roadways satisfy drivers’ needs of riding with safety and render an adequate workload. Available sight distance along a road alters drivers’ expectancies and the way in which they perceive the driving environment, influencing their ability to adjust speed when driving. Roadway design should offer the driver enough visibility to perform driving manoeuvers such as braking and overtaking, among others. This paper describes a tool for assessing the availability of sight distance as an aid to improve road geometric layout consistency. This tool was entirely developed at the San Juan National University, in San Juan, Argentina. At any station along the road alignment it estimates the distance between driver’s eyes and the point in which the road becomes hidden and its angle with respect to the road axis. In addition, it estimates the availability of passing distance and the sectors of the road ...
... section. In this paper, only the average coefficients for each road are presented (Table 3). ... more ... section. In this paper, only the average coefficients for each road are presented (Table 3). kIRI obs pred IRI IRI IRI IRI = − − 0 0 4( ) ... Av. Rawson 40N Mendoza Northern Access 3.25 9.80 JRCP 9.67 × 106 2.6 72.9 71 ck/km 3.70 to ...
Any highway should be able to offer driving safety. In this sense, it is especially valued that r... more Any highway should be able to offer driving safety. In this sense, it is especially valued that roadways satisfy drivers' needs of riding with safety and render an adequate workload. Available sight distance along a road alters drivers' expectancies and the way ...
Los modelos de aceleracion y desaceleracion son necesarios para construir los perfiles de velocid... more Los modelos de aceleracion y desaceleracion son necesarios para construir los perfiles de velocidad para el diseno geometrico de carreteras y evaluar la consistencia. Generalmente se usa un valor de aceleracion / desaceleracion de 0,85 m/s2. El estado del arte muestra que este valor no es constante para todos los casos observados. Este articulo presenta un estudio de modelos de aceleracion y desaceleracion de vehiculos livianos en tres carreteras rurales de dos carriles en San Juan, Argentina. Estos valores se midieron con un equipo GPS y una camara de alta resolucion, los cuales fueron instalados en los vehiculos de prueba. El trabajo estudio dos aspectos, la desaceleracion desde la tangente de entrada a la curva horizontal y la aceleracion desde la curva horizontal hacia la tangente de salida. Se registraron datos de aproximadamente 400 curvas horizontales con radios mas pequenos de 1 000 m, con tangentes hasta 2 000 m y pendientes longitudinales menores al 5%. Los datos se recole...
The most important terrestrial connection between Argentina and Chile is the International Pass “... more The most important terrestrial connection between Argentina and Chile is the International Pass “Cristo Redentor”, concentrating more than 70% of the trade between both countries. On the Argentine side, at the middle of the Andes Range, National Road No 7 has a jointed plain concrete pavement in its section nearest to the boundary. That pavement is more than 20 years old, and supported during its life very hard winters and a traffic with a high proportion of heavy articulated trucks. This paper presents an evaluation of the performance of that pavement from recently collected distress data, using World Bank s and PIARC s HDM-4 Model. Results clearly show the high influence of rigorous climate and winter maintenance on the severe distress observed on the surface of the pavement, especially in its sectors of higher altitude above sea level. Also, the predictive capacity of HDM-4 distress models for jointed plain concrete pavements has been verified in this case; functional-type models...
Any highway should be able to offer driving safety. In this sense, it is especially valued that r... more Any highway should be able to offer driving safety. In this sense, it is especially valued that roadways satisfy drivers’ needs of riding with safety and render an adequate workload. Available sight distance along a road alters drivers’ expectancies and the way in which they perceive the driving environment, influencing their ability to adjust speed when driving. Roadway design should offer the driver enough visibility to perform driving manoeuvers such as braking and overtaking, among others. This paper describes a tool for assessing the availability of sight distance as an aid to improve road geometric layout consistency. This tool was entirely developed at the San Juan National University, in San Juan, Argentina. At any station along the road alignment it estimates the distance between driver’s eyes and the point in which the road becomes hidden and its angle with respect to the road axis. In addition, it estimates the availability of passing distance and the sectors of the road ...
... section. In this paper, only the average coefficients for each road are presented (Table 3). ... more ... section. In this paper, only the average coefficients for each road are presented (Table 3). kIRI obs pred IRI IRI IRI IRI = − − 0 0 4( ) ... Av. Rawson 40N Mendoza Northern Access 3.25 9.80 JRCP 9.67 × 106 2.6 72.9 71 ck/km 3.70 to ...
Any highway should be able to offer driving safety. In this sense, it is especially valued that r... more Any highway should be able to offer driving safety. In this sense, it is especially valued that roadways satisfy drivers' needs of riding with safety and render an adequate workload. Available sight distance along a road alters drivers' expectancies and the way ...
Uploads
Conference Papers by Juan Marcet
Papers by Juan Marcet